Rebuilding a 4.0L Jeep Straight Six to 242HP

Rebuilding a 4.0L Jeep Straight Six to 242HP - Engine Power S2, E14

Рет қаралды 2,301,719

4 жыл бұрын

Pat and Mike rebuild and hop up a 4.0L Jeep straight six with trick cam, modified intake and aluminum head.
PARTS USED IN THIS EPISODE:
ARP: Assembly Lubricant, for Engine Assembly and Fastener Installation, Ultra Torque, 1.69 fluid oz., Each
More Info: pntv.us/pn_pt_10829
ARP: Cylinder Head Bolts, High Performance Series, Hex, Chromoly, Black Oxide, Washers, Jeep, 4.0L, Kit
More Info: pntv.us/pn_pt_10844
ARP: Bolts, Hex Head, Stainless 300, Polished, 1/4 in.-20 RH Thread, .750 in. UHL, Set of 5
More Info: pntv.us/pn_pt_10843
Clevite: Rod Bearing, P Series, Standard Size, Tri Metal, AMC, 199, 242, 258, 290, 304, 343, 360, Each
More Info: pntv.us/pn_pt_10836
Clevite: Main Bearings, Direct Replacement, .010 in. Undersize, TM-77, AMC, Jeep, 199, 232, 4.0L, 258, L6, Set of 7
More Info: pntv.us/pn_pt_10835
Crane Cams: Camshaft, Hydraulic Flat Tappet, Advertised Duration 272/284, Lift .484/.512, AMC, Inline Six, Each
More Info: pntv.us/pn_pt_10837
Dorman Products: Oil Pan, Steel, Black, Jeep, 4.0L, Each
More Info: pntv.us/pn_pt_10842
Doug's Headers Headers, Full Length, Steel, Ceramic Coated, Chevy, 5.7L, LS1, LS6, Pair
More Info: pntv.us/pn_pt_10855
Driven Racing Oil: Motor Oil, Racing Break-In BR, Mineral, 5W30, 1 qt., Each
More Info: pntv.us/pn_pt_10830
E3 Spark Plugs: Spark Plug, E3, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each
More Info: pntv.us/pn_pt_10854
Edelbrock: Cylinder Head, Assembled, Aluminum, Natural, Jeep, 4.0, L6, Each
More Info: pntv.us/pn_pt_10834
FAST: Throttle Body Fuel Injection, EZ-EFI Self Tuning, Speed Density, 4-Barrel, Jeep, 4.2L, Inline Fuel Pump, Kit
More Info: pntv.us/pn_pt_10846
Harland Sharp: Rocker Arms, Pedestal Mount, Full Roller, Alum. Adjustable, 1.6 Ratio, Jeep, 4.0L, Set of 12
More Info: pntv.us/pn_pt_10845
Mac's Custom Tie Downs: Engine Lift Plate, Carburetor Pad Mount, Steel, Blue Powdercoated, Each
More Info: pntv.us/pn_pt_10856
Melling: Oil Pump, Standard-Volume, AMC/Jeep, 2.5L/199/232/258, Each
More Info: pntv.us/pn_pt_10841
Mr. Gasket: Water Pump Drive, Electric, Universal, Kit
More Info: pntv.us/pn_pt_10850
MSD Ignition: Distributor, Pro-Billet Street, Magnetic Trigger, Vacuum Advance, Jeep, 232, 258, L6, Each
More Info: pntv.us/pn_pt_10852
MSD Ignition: Spark Plug Wires, Super Conductor, Spiral Core, 8.5mm, Red, Multi-Angle Boots, Jeep, 4.0L, Set
More Info: pntv.us/pn_pt_10853
Omix-Ada: Timing Chain Cover, Aluminum, Natural, Jeep, Kit
More Info: pntv.us/pn_pt_10839
Professional Products: Harmonic Balancer, PowerForce, Neutral balance, Nodular Iron, Black Anodized, Jeep, 4.0L, Each
More Info: pntv.us/pn_pt_10840
Quick Fuel Technology Inc.: Carburetor, Black Diamond Q-Series, 750 cfm, Mechanical Secondary, 4-Barrel, Square Bore, Drag Race, Each
More Info: pntv.us/pn_pt_10832
Rugged Ridge: Headers, Shorty, Stainless Steel, Polished, Jeep, 4.0L, Each
More Info: pntv.us/pn_pt_10851
Summit Racing: PIT PAL,Engine Lifting Sling, 22 in. Long Straps, Steel/Nylon, Each
More Info: pntv.us/pn_pt_10833
AutoZone: Compressor Works, Water Outlet
AutoZone: 3 piece set,Includes cam sprocket, chain, crank sprocket
AutoZone: Duralast, New, Water Pump
Dupli-Color: VHT, Paint, Wrinkle Plus, Gray, 11 oz., Aerosol Spray Can, Each
Kundel: Overhead Crane System
Miller Electric Manufacturing Co.: Diversion 165 Millers most affordable and easy to use AC DC TIG machine that was designed specifically for the personal user.
RockAuto.com: Schrader produces world-class TPMS sensors for both Original Equipment Manufacturers (OEM) as well as for Aftermarket service & replacement professionals
The Industrial Depot: Fasteners, Hardware, and Shop Supplies

Пікірлер: 2 100

@PowerNationTV 4 жыл бұрын

We'll continue to post these episodes here on KZfaq. If you can't wait for the rest of the build, visit our site to binge-watch: www.powernationtv.com/shows/engine-power

@TheOne-ov3mj 4 жыл бұрын

You guys should in the future rebuild and tune the 4.0 OHV 6V. That would be an interesting build!

@marshallmcdowell3369 4 жыл бұрын

I’d like to see the episode where you tested the 300 inline six and also I’d like to see you build a mopar 383

@LarryisControversial3000 4 жыл бұрын

What did it cost to build? How much 66hp and 66 torque cost?

@jeepxj784 4 жыл бұрын

Love these episodes you guys!! Keep it up! #JeepLife

@jeepxj784 4 жыл бұрын

Through the buildcost in the description haha (minus the tunetime$)

@stephenhunter6507 4 жыл бұрын

After watching this video I now feel completely confident.... to pay an engine shop to do this for me.

@skippywinters Жыл бұрын

Ahahah we could be friends

@skippywinters Жыл бұрын

Except I’d prob buy all the necessary tools before coming to that conclusion

@kelceyallen433 9 ай бұрын

How much do think itll cost, to get a job like that done???

@rickjames5998 9 ай бұрын

even then, I dont feel confident in "professionals" to do this. Even if they have exact instructions.

@rabidturnip78 7 ай бұрын

I'm feel like I wanna do it, then I think...I'm I trash mechanic...

@mack333 4 жыл бұрын

I bought a new 87' Cherokee with this engine. Not long after I took delivery, a metal-to-metal tapping-type sound was being emitted from the engine compartment until the engine had warmed up. The dealer (Lou Bachrodt Chevrolet, Rockford, Illinois) replaced the rocker arms in response to a bulletin stating that they were inadequately hardened, then told me the noise was "normal for that type engine" after the third visit. A first visit with a new dealer in an adjacent town (Belvidere Motors, Belvidere, Illinois) solved the problem. The source of the noise was a cracked weld in the exhaust manifold, which then became quiet after the engine had (fully) warmed up. Their mechanic went for a ride with me; after traveling less than100 feet, he exclaimed, "The exhaust manifold is cracked." RESPECT!

@austinaubinoe2195 Жыл бұрын

Ha this was an issue until 2000 (99 in the grand Cherokee) when they went to a two piece cast iron manifold. The fix is a high end stainless manifold. But a Cheap steel manifold with expansion joints works as well.

@chrisbrown1462 Жыл бұрын

Had the exact same problem with my 87. They diagnosed right, but it always seemed to have a slight leak.

@chucktaylor4958 Жыл бұрын

The end result sounds great and the numbers are as well.

@stevelacker358 4 жыл бұрын

That 99-up intake manifold was never made to run “wet”, I’d love to see how it runs with the factory port injectors.

@VitoVeccia 4 жыл бұрын

It'll be fine, so long as you start it up in a heated garage without the camera rolling. I swear these guys are amateurs.

@dopeass791 3 жыл бұрын

Would probably be more hp

@revolutionday1 3 жыл бұрын

.........and the coil on plug ignition, too!

@arturos.l.2248 3 жыл бұрын

They shouldn’t have put a carburetor in. This type of i6 engine is not even supposed to run on a carb. It looks great now on paper, but it won’t last 5 years

@mpetersen6 2 жыл бұрын

None of the 4.0s was meant to run wet. They all had point fuel injection. The li citing factor on these engines (and pretty much every other US built OHV) six is the cylinder head. Limiting porting options. But the if you got the redline up to 6k you would be do going well. Iline sixes have a resonance somewhere in the 6 -7k rpm range that if you run them at that range for a sustained period the cranks will break. These engines were never designed to be high output high performance power plants. They were designed for adequate* horsepower and low end torque. As to the basic engine architecture there is a racing series in Argentina that uses the 4.0, the Chevy OHV and Ford OHV engines as the base point replacing the head with a DOHC 24 valve piece, dry sump lubrication where the bottom end is modified significantly. Carburation is limited to two two barrel carbs. Engine output around 500 hp.

@DarkSwordsman 4 жыл бұрын

I feel like I was just transported to 2005 with this production style.

@rickjames5998 4 жыл бұрын

I mean for this type od video, some things havent really changed much.

@sidneycoakley1524 3 жыл бұрын

Dude ,Sunday’s back in the early 90s was the only time we got to watch these on TNN

@Ward413 3 жыл бұрын

At least they removed most of the fake written dialogue between the hosts. These guys seem to genuinely like each other and get along. The banter between the hosts is usually cringe level 5000.

@matthewburkett7149 3 жыл бұрын

Reminds me of Tool time from home improvement lol

@TrevorTrove 3 жыл бұрын

Hahah 10 seconds in hit the nail on the head

@BlindBatG34 4 жыл бұрын

Doman is guaranteed to fit. That's comedy gold right there.

@georgesimpson3113 4 жыл бұрын

Except... at least some of their pans are painted inside, and the paint comes off and clogs the oil sump, toasting the engine.

@BroncoSolid 4 жыл бұрын

@@georgesimpson3113 The automotive equivalent of a pulmonary embolism.

@ml.2770 4 жыл бұрын

Dorman. Every time I use it I cringe.

@andyromero7243 4 жыл бұрын

"got this dorman oil pan from summit racing" lol you can get dorman from autozone at half the price and no shipping cost because they got one on the shelf lol

@rthomas6564 4 жыл бұрын

Or there oil cooler gaskets that are not compatible with motor oil

@wickedgriptuning7623 2 жыл бұрын

I love how they made crap power with the TBI setup, said “oh the injection system is fine”, then took it off and made the power they wanted with a carb instead. Umm, it seems to me the injection setup wasn’t so fine after all.

@drewledbetter526 Жыл бұрын

Your right ...like a used car salesman. Your screwed.

@everettgrover9459 10 ай бұрын

the injection system is fine...it was the altered induction system that messed it all up, as it was configured for a carb setup rather than EFI

@a6t8vw1 7 ай бұрын

@@everettgrover9459 That doesn't make sense. If the carb fixed the issue, the 4 bbl EFI system should do the same. Had to be a limitation of tuning or lack of understanding of EFI system.

@everettgrover9459 7 ай бұрын

@@a6t8vw1 my thinking was that they had to majorly modify the intake to get the fuel injection to work, and when you modify the airflow to that extent it definitely would alter the power band , but what baffled me was that the made more power with the carburetor rather than the efi

@everettgrover9459 7 ай бұрын

@@a6t8vw1 it was kind of a theory I had if that helps you

@jasonsun3695 4 жыл бұрын

Welding without gloves? What a champ.

@Mega_Tron6891 Ай бұрын

That just tells me he’s only welding for the video 😂

@jaredlines3177 4 жыл бұрын

“Now we’re not stroking it, and we’re not stroking you...”

@a_parked_stang_5942 4 жыл бұрын

Jared Lines i was like, what the hell😂

@A1commentary 4 жыл бұрын

I said it in my head and knew id find it in the comments lol

@karlsmith2570 4 жыл бұрын

Jared Lines That's what she said

@Jeremy_Hill_2020 4 жыл бұрын

( ͡° ͜ʖ ͡°)

@JifeLacket 4 жыл бұрын

@Benny T Sometimes I really wonder who is writing this stuff. Haha

@Maur1c1oQ 4 жыл бұрын

Love how this video includes not only the successful outcome but also the failed ideas and their rectification.

@drewledbetter526 Жыл бұрын

Your a moron

@MrPiimpslap 4 жыл бұрын

Part 2 of the 4.0 rebuild, take off all the silliness, grab another 99+ intake and use the factory injection, ignition and ECU.

@deathcogunit106 4 жыл бұрын

Yeah. This was painful to watch.

@superkillr 3 жыл бұрын

They need a way to tune that pile of dogshit you Jeeptards all salivate over.

@iambiggus 2 жыл бұрын

I bought a 98 JGC with the 4L a couple years ago from a family friend. Literally sat in a garage and was only used to haul this guys kids to the beach a few times a year. Less than 40k on the odo, spotless maintenance, spotless interior, zero rust, and paid $1,500. They'll bury me in it.

@MARedleg 4 жыл бұрын

Ahh, there’s something therapeutic and stimulating watching an engine be put together.

@tommurphy4307 2 жыл бұрын

and that's just watching....imagine actually DOING it? YEE-HAW!!!

@smirage22 4 жыл бұрын

I'm still shaking my head at the use of a Carb, Chrysler finally got the 4.0L right between 2001 to it's end in 2006 with Fuel Injection. Plenty of silky smooth low end torque. Hell I've seen Turbo'd 4.0L making decent numbers

@cmte.brazinazzo2061 4 жыл бұрын

Carb? No, that's an TBI EFI system.

@smirage22 4 жыл бұрын

@@cmte.brazinazzo2061 but does that resemble the last years of the 4.0? it doesn't

@JeffDeWitt 3 жыл бұрын

@@cmte.brazinazzo2061 Did you watch the whole video? They gave up on the TBI and put a carb on it.

@tommurphy4307 2 жыл бұрын

carbs are cool. i've built some great VG30 nissans with a non-USA intake manifold and a holley model 2300 2-barrel 500cfm carb. nissans VG30E with stock fuel injection=160hp. with the stock cams/valve train with corrected timing and the carb-modded fuel system=225hp (verified on a friend's stuska water dyno). with billet cams- engineers reach for the oh-shit bars.

@indridcold8433 4 жыл бұрын

Working on the AMC 242ci I6 engine is almost like working on a Lego set. I believe a trained chimp could work on these amazing power plants successfully. The simplicity of the AMC 242ci I6 is probably why it is one of the most reliable engines ever made. It is not uncommon for someone to come driving in with a 1999 Jeep Cherokee with the owner complaining it is rattling and the engine have 400,000+ miles on it. The rattle is usually nothing but tired lifters. I tell the owner that I can change the lifters or they can drive it another 200,000 miles before they go out completely. Then they tell me it only does it when it is cold but when it is warm it is fine and it had been doing it since 250,000 miles. I then tell the owner, that is what an AMC 242ci I6 does. The sound is a warning that you must change the old lifters around 600,000 miles. Most decline to change the old lifters after they have a laugh with me.

@11BMW328i 2 жыл бұрын

I am one of those trained chimps.

@realpremier 2 жыл бұрын

@@11BMW328i hahaha me either 😂

@thomascoolidge2161 2 жыл бұрын

Question... why would they go with flat top lifters instead of roller/rocker cam and lifters?

@imAdolff 2 жыл бұрын

Where's the lifter located? I am not a trained chimp as you may have figured by now

@indridcold8433 2 жыл бұрын

@@imAdolff You have to drop the oil pan to get to the lifters. Some engines, not the classic AMC inline six, you can get to thed lifters after you pull the push rods with a magnet on the end of a stick and just pull them out after the valve rockers, springs, and push rods are pulled. You have to pull the rockers and push rods from under the valve cover first, no matter what, on a pushrod engine. The lifters will be at the lower end of the push rods. Some people take off the cylinder head. But I find that completely pointless and it adds more work.

@howtobebasic2122 4 жыл бұрын

the 4.0l is one of the most bulletproof engines jeep made.

@MrWaalkman 4 жыл бұрын

I gave away my '93 when it had 350,000 miles on it. Checked in with the new owners a few years later and it was well over 400k. Not delivering much in the way of power mind you, but still chugging along.

@jimmyj2563 4 жыл бұрын

Based on a 1970s Australian Chrysler design.. I have one in my 76 regal. Two barrel carb and electronic ignition, they were strong torquey motors even without efi

@Jdres123 3 жыл бұрын

My 98 is my daily driver,312k on it. Runs great.

@DesertRunner602 3 жыл бұрын

Not when these guys get ahold of it

@revolutionday1 19 күн бұрын

*Except for the absolutely PUSSIFIED cast aluminum pistons in the later models, which will grenade themselves at the slightest sign of heat or stress.

@wolfhauzer3178 4 жыл бұрын

2:10.."were not Strokin it and Were not Strokin you".. .you just HAD To say that on camera Lmfao 😂

@jeepxj784 4 жыл бұрын

🤣🤣

@fishhuntadventure 4 жыл бұрын

actually now that I’ve watched the whole vid? They were shoveling a lotta bull!

@kimhighfield6529 4 жыл бұрын

Would like to see a Ford 300 I-6 build.

@mattwhitaker3801 4 жыл бұрын

They already did

@NVzla 4 жыл бұрын

Battle of the sixes. All 3 built so far are the Big 3s best engines made in that platform. This would be interesting, as these motors all have a good aftermarket parts inventory.

@williamanderton9615 4 жыл бұрын

Knock down the 250 Chevy engine they have done the Ford 300 and the Dodge 225 and they've also done a video about the Ford 200

@danhambrick6331 4 жыл бұрын

How about a chevy 292?

@coulterburnett6595 4 жыл бұрын

Me to

@jamazonnewyork3221 Жыл бұрын

the automotive industry has made the world so great

@sunset-eq7rf 3 жыл бұрын

My father purchased a 1988 Jeep Cherokee in Oct'87, 4.0l with a 5 speed manual. I remember it was a real strong engine. I once did a first gear rollover at 10-15 km/h and I lit up the rear tires. We pulled heavy loads with it. There wasn't a Southern Ontario snow storm it couldn't handle. I must admit, it was not the most reliable car, but the engine was indestructible. He sold it in Feb 2002 with 455,000 km on the odometer. Did not burn a drop of oil and the engine pulled just as strong as the day he brought it home from the dealer.

@codeechambers6530 4 жыл бұрын

A ford 300 inline 6 fuel injected build would be sweet!

@sarcastomimic2683 4 жыл бұрын

Now, that 300 is a torque monster. It has the stroke to get it done. I would like to see that too!

@Jeremy_Hill_2020 4 жыл бұрын

Same

@codeechambers6530 4 жыл бұрын

@RK Henderson these guys mad a mistake with the intake. The efi didnt like it . Fuel injected Is all around better too.

@codeechambers6530 4 жыл бұрын

@RK Henderson he says it right in the video dumbfuck, how come we dont use carburetors anymore? It's like efi is more efficient or something, weird.

@JeffDeWitt 3 жыл бұрын

Yep, I love the Jeep 4.0 but any straight six is fine. I had a Granada with a straight six (250?) and stick, second best car I've ever had. The best is my 96 XJ Cherokee with the 4.0.

@stanleykendziorski7964 4 жыл бұрын

Your intake probably failed because of how you did it.. and to quote big chief, looks like ray Charles welded it with his feet

@blownaway4371 4 жыл бұрын

@Alex L ...But Ray COULD weld!! Haven't you ever seen his welds? ....Neither DID HE!!

@hiitsrudd8567 4 жыл бұрын

maybe it needed the overhang trimmed to the inside of the plenum and welded flush also?

@Tigerfire75 4 жыл бұрын

Ray Charles was only using his feet so he didn't mess up his hands since he plays the piano

@dustinwalden7091 4 жыл бұрын

You ever weld cast aluminum?

@jeremymardlin5381 4 жыл бұрын

@@JT_771 exactly, I bet they lost a bunch of horsepower because of that.

@jamesdewer 2 жыл бұрын

You guys speak my language. No-Nonsense, concise rubber meets the road talk. Not a bunch of nonsense.

@therealbadbob2201 4 жыл бұрын

Wonderful engine. I put 390,000 miles on my 1990 Cherokee. I pulled the head once to replace the head gasket. Other than that, just oil changes, anti freeze and spark plugs. At 390k the compression in two cylinders dropped dramatically, then it spun a piston bearing. I had a hard time deciding to scrap the jeep other than rebuild the engine, but the rest of the jeep was nickel and diming me. Sold it to a scrap guy, he rebuilt it, the jeep is still out there.

@Condor1970 4 жыл бұрын

My favorite Jeep engine. Such a shame they stopped using them.

@1voiceofstl 4 жыл бұрын

newer 3.8 was good

@riogrande163 4 жыл бұрын

@ChrisHallett83 hardly, barras are expensive in the US, parts are hard to find, they lack the low end torque needed for offroading, keep your barras on the street.

@nomadih2252 4 жыл бұрын

The Jeep 4.0 and the 7.3 PSD. Two legendary engines that never shouldve been replaced.

@beardedforlife3740 3 жыл бұрын

@ChrisHallett83 waste of time swapping in a boat anchor when mine works perfectly fine

@JeffDeWitt 3 жыл бұрын

Yep, but it was an AMC design and Chrysler/MB wanted to get rid of it... especially Chrysler as it's a better engine than anything Chrysler makes.

@nutz4gunz457 4 жыл бұрын

No Doorman product is corrosion resistant and guaranteed to fit.

@Tanner731 4 жыл бұрын

doorman and omix are the worst. used oem parts are better lol

@Oblithian 4 жыл бұрын

I made the mistake of ordering a dorman oil pan once...

@stockprerunner5277 4 жыл бұрын

Oblithian a baking pan would have worked better

@Tigerfire75 4 жыл бұрын

@@Oblithian hey they aren't bad. I have one to hold parts like bolts and such.

@houseofpills 4 жыл бұрын

@@Tigerfire75 Dorman bed pan

@guyforlogos 4 жыл бұрын

Why on earth would you remove multi-port fuel injection for throttle body injection or carburetor? Those manifolds were designed to flow air only.

@Pike3916 4 жыл бұрын

I believe they had an older block that was TBI to start with and modified a newer head to take the Edelbrock kit.

@ryanjenkins9776 3 жыл бұрын

4.0 was never TBI, when it came out in 1987 it had renix style multiport injection.

@bluedeval03 2 жыл бұрын

@@ryanjenkins9776 87-90 was carbed 4.2, 91 up was mpi 4.0

@87FoRunner 2 жыл бұрын

XJ were efi starting in 87

@guyforlogos 2 жыл бұрын

@@bluedeval03 the 4.2 was always carbureted, it had a small bore and big stroke, it ended in 1990 in the wrangler. In 1987 the 4.0 was used in the Cherokee it had big bore and small stroke, always had EFI, first a Renault-bendix collaboration called renix and in 91 the 4.0HO with a Chrysler EFI.

@ronreyes9910 3 жыл бұрын

This engine came from Rambler originally, then to AMC who acquired Jeep from Willys Overland (Willys only offered a four). The reason for the low wear was all AMC engines used high nickel casing alloy (Oldmobile was the other one). Other mfg's only used Nickel alloys on truck blocks and industrial engines (like Chevy, Ford, International Harvester and Lycoming). BTW IH used this engine in the Scout.

@CheezyDee 4 жыл бұрын

"Definitely not the injection system's fault." Puts a carb on and it gains 80 HP...

@spjmrlahey4008 4 жыл бұрын

They used a shit FI system. Put a proper multi-port injection system in it and it will beat that carb.

@xjinit 4 жыл бұрын

@@spjmrlahey4008 not to mention an aluminum head and aluminum pistons. Dropped the ball on this build for sure.

@johnbcardin 4 жыл бұрын

I’m surprised they didn’t edit that out before the original airing of this video. I’m not sure If it makes the host look worse or the sponsored product worse.

@frigglebiscuit7484 4 жыл бұрын

@@spjmrlahey4008 no, they used a split plane crab spacer, it looks like. efi doest like that at all.

@elonmust7470 4 жыл бұрын

Haha I'm getting flamed for saying basically the same thing. Old men and their carburetors.....

@paulmartinez8337 3 жыл бұрын

There you go! Straight 6, a simple engine! Least Complicated, very dependable with great torque and horsepower per square inch.

@rodneyhopper22 Жыл бұрын

Add a 401 to the equation for hell of it

@leodubray1827 3 жыл бұрын

I would have liked to seen that power run before you cowboyed the intake manifold.

@rodneyhopper22 Жыл бұрын

It's called in ovation instead of lamo ovation

@jacobvanhalteren7452 4 жыл бұрын

It's nice to see people rebuilding engines that most people don't think about when they think performance. Be awesome to see a gm 4.3 v6 sometime

@savondavis4896 4 жыл бұрын

Product placement aside, I must say that's a beautiful straight six.

@rustbucket11 4 жыл бұрын

I appreciate the honesty and showing when something doesn't work as expected.

@gentlemanzackp6591 Жыл бұрын

we had a 2001 Cherokee, stock. and that thing have went through a LOT. woods traversing for hunting ( got too tired/lazy to drag very large boar back) camping for 15 days in desert west Texas. road trips from Texas to PA, and back, occasionally stopping in St Louis. odometer was reading 240k miles. when we finally decided to get another car, a brand new grand Cherokee. we kind of put the Cherokee aside for minor projects. first thing we did was to "restore or replace many parts in transmission and engine. bigger ports, bigger intake and exhaust ports, bigger cam. bigger intake box, cherry bomb exhaust. secured shields on undercarriage and rock skid bars. custom bumpers, rhino paint. 2 inch lift spacers. new steering racks, bigger sway bars and custom 2.5mm shield over front differential and rear differential with skid bar to deflect stones away from driveshaft/pinion area. BFG mudders. interior was completely stock other than rear seat remove and passenger side had 200?+ count rachet/hex/torx toolchest with many spare fasteners. driver side, had small cabinet with air compressor and battery jump kit, yeti coolers, and finally a small batterypack UPS for whatever, with 3x 120v outlets. 4.0 Cherokees are really WELL built. probably only good thing from Chrysler. and that is saying a lot.

@TheManic.5-OH 7 ай бұрын

The year is 2000. I just woke up on a Saturday, both parents are gone. Im hungry, i get a bowl of cereal, turn the tv on and see POWERNATION come across the tv screen. Life is good

@stoff3r 4 жыл бұрын

such a nice sound in the old straight sixes

@PatricioGarcia1973 4 жыл бұрын

A 6-1 header to a 3 inch exhaust and you have the magical sound of a straight six.

@theUltimateLord 2 жыл бұрын

One of if not the greatest engines ever

@Blacktopmafia660 4 жыл бұрын

Years ago I had a 91 wrangler 4.0L. I raced it., lol I know it’s a Jeep. But people never expected a Jeep to whip em. It was forged, custom ground stick and a 250 shot of nitrous.

@Chris-kj9ou 8 ай бұрын

Love my 4.0 wrangler. It is a beast and amazing motor. As a veteran mechanic i have seen some crap engines but this motor is great.

@wesulf7517 4 жыл бұрын

"so go easy" *hits the crank timing gear with a hammer in the next frame* lol

@peterchristlieb 7 ай бұрын

Pat made the right move going to the air saw, if you want to be really cool, get a geared air saw and the files that fit it. You won't use it every day but its worth the real estate it takes up for when you do.

@dwaynehagle7445 7 ай бұрын

Love the intake mod Well done.

@mikewest712 4 жыл бұрын

I came here to be stroked, thanks for the disclaimer. Im out

@rickbwaaaa 3 жыл бұрын

STROKE ME

@twostoogesgarage5457 3 жыл бұрын

Damn you beat me to it

@comeatmebro1238 3 жыл бұрын

Damn it I had the ky jelly!!

@mattdajedi 3 жыл бұрын

😂😂😂😂 that shit made me laugh when he said it lmao

@jessecathey708 3 жыл бұрын

Lmao hey they need to turbo charge it

@semitones 4 жыл бұрын

"It's definitely not the injection" - next minute, swaps out engine for carb. Luddites.

@misters2837 4 жыл бұрын

Yeah, I don't think the computer had enough references to fully tune it...almost everyone with an ear could hear it was lean! SMH!

@clydefrog4959 4 жыл бұрын

Too much pride to say they're wrong.

@danielwarpaint1963 4 жыл бұрын

@@misters2837 YesSir, it sounded amazing with the carburetor.

@misters2837 4 жыл бұрын

@@danielwarpaint1963 Yeah when they did the pull with the TBI system, I was saying to myself "20 Minutes of self tuning, on a Dyno isn't enough, and its LEAN!" LOL...I built a 393W for a friend/customer, and we put one of those Fast EFI Systems on it...and I ran it 3 hours on my engine stand (no real load)...Installed the Engine into a Bullnose Ford Truck, and drove it to work for 2 weeks...and it Finally Woke up after 200+ miles...it was like I would open the secondaries and it would fall on its face like the 4.0 in this video...it was like flipping a switch...when it Finally took charge!

@MrPryceTagg1 4 жыл бұрын

@@danielwarpaint1963 ,,,thas why I junked my EFI, currently running a big weber with a few other mods

@jerryking7502 3 жыл бұрын

Glad to see you are not afraid to use cork! Cork will last for years if it is properly torqued!

@2012listo 4 жыл бұрын

I did almost the exact build for my 85 sx4. 3500 stall, too. Thing dis a two-wheel burnout for blocks and blocks! Blew the transfer case racing in the snow, so I rebuilt the whole thing. Beale did the interior. Black and maroon, black interior. A true muscle car. Loved it! Had vr4, evo, scoobie, focus mach-1 (dont ask), too many bikes to list. Something had to go. Still miss it. And my vr4. And my challenger. Mach-1 (73). Impala. Other sx4. 5 glh turbos. Had it all. Nothing now but success in business and homeschooling. But I got my eye on that new accord 2.0 turbo 6-speed.

@dapoppa2256 4 жыл бұрын

I loved this engine in my jeep!! Could not kill it..Took a licking and kept on ticking always performed strong, pulled like a mule. Just keep your oil fresh, and that coolant in check...More reliable than a V8 in off road applications.

@heavysnow8616 4 жыл бұрын

Great job on the rebuild. The engine sounds great and will run forever with frequent oil changes, cooling system maintenance and a good ear to identify any odd noises. Cheers boys!

@tommurphy4307 2 жыл бұрын

THAT'S what jeep thought, too

@stephhaug3316 2 жыл бұрын

Always a pleasure to see Mr. Topolinsky 👍👍

@brucewrandol 4 жыл бұрын

That same engine was in Ramblers the 50’s. This was before AMC acquired it. Jeep got the engine when Chrysler entered the picture. So Jeep may have had it for 19 years. Also, Barney Navarro built a 199 cu. in. Turbocharged Rambler for Indy.

@renof2505 4 жыл бұрын

The cork valve cover gasket is killing me. I guess it saves you from having to open the hood and pour a quart of oil on it every week.

@rodneyhopper22 Жыл бұрын

They do have a place to add the oil to the motor 🙄 duh dude I'm just saying 😉😂😆🤔

@BenJaminLongTime 4 жыл бұрын

these engines are plentiful, cheap, reliable and bad ass. I would like to see more on this engine. supercharge that sh*t!

@Jacobwafflez Жыл бұрын

Help me with mine lol

@jjppsanchez77 2 жыл бұрын

My Cherokee has 31 years and still running with the original engine. Those little engines just keep going and going and going 🐰🐰🐰

@defendfreedom 4 жыл бұрын

GO jeep power!!! Guys, seriously, please, 2.5 liter build series!!! Budget to Brutal...How far can a 2.5 liter GO!!!!!!! They can be stroked to 3.0 liters, there WAS a supercharger available, and of course turbos. You guy ROCKED THE HELL OUTA THE FORD 2.3!!! 2.5 liter BUDGET TO BRUTAL, at least take a vote ans see if it will be popular.

@moesizlac2596 4 жыл бұрын

Yeah I "need" ARP fasteners on my oil pan! Cuz I gots to get 'em tight tight tight!

@rickmilam 4 жыл бұрын

It’s been proven by hesco that the stock injection configuration and runner length is the best set up!

@ComputerLearning0 4 жыл бұрын

In the early 1990's my employer used Jeep Cherokee's exclusively with around 20 of them in their inventory. I was provided a brand new take-home Cherokee and was the first time I'd ever driven a Jeep product and I was immediately impressed how good they drove and the amount of power those 4.0 liter 6 cylinder engines produced. Originally, when I learned they were buying 6-cyl Cherokee's I didn't have much confidence in this motor but after two years behind the wheel of one I was thoroughly impressed.

@ComputerLearning0 4 жыл бұрын

@Oggy No, by that point they were owned by Chrysler and our Cherokee's had their straight-six motor.

@ComputerLearning0 4 жыл бұрын

@Oggy They're two completely different engines.

@christophermink6186 4 ай бұрын

My dad used to say the 4.0 jeep is the 350 Chevy of the off road world and remember him having a turbocharged 4.0 back in like 1994 he built.

@about2mount 2 жыл бұрын

I have been a mechanic all my life, but I have never seen anyone ever leave out or forget to place the crankshaft bolt cross-tie locks until now.

@drewledbetter526 Жыл бұрын

This show is bs

@unicornsteaks6769 4 жыл бұрын

242 whole horsepower! at what cost? Next you'll build the elusive $5K 300 HP 350 Chevy.

@ImNotADeeJay 4 жыл бұрын

that workshop is cleaner than my kitchen

@craig84downunder 4 жыл бұрын

Curious why you guys didn't go down the route of using the factory style injection bosses and setup in batch fire, rather than butchering the factory manifold?

@Whiteandsonsgarage 4 жыл бұрын

Craig W I was thinking the same thing

@frigglebiscuit7484 4 жыл бұрын

because that alone would cost like $500 for just the megasquirt ii ecu.

@elonmust7470 4 жыл бұрын

@@frigglebiscuit7484 they could've just used the factory ecu.

@craig84downunder 4 жыл бұрын

Theodore Dowman Already got 2500$ into the ez-efi kit, should of chosen the 1200$ that utilises multi point and keeps the sponsors happy also :)

@alexcorona 4 жыл бұрын

Craig W Laziness.

@deanwilliams867 4 жыл бұрын

By 1990 the 4L H.O. was rated @ 190 horsepower !

@grad0n 4 жыл бұрын

Dean Williams 1991 was the “H.O.”

@deanwilliams867 4 жыл бұрын

@@grad0n from 89 to 1992 I sold Jeeps probably a little confused at this point because new vehicles come out so early I'm sure you're correct it was a 91 model year ! But I definitely sold a lot of them in 1990.

@K9River 3 жыл бұрын

Powernation is apparently the CNN of motorsports.

@CognitoH4zrd 3 жыл бұрын

Gotta love them Jeeps. That straight-six is beautiful. The sound it makes too ❤❤❤

@jonathan-emilypowell1962 4 жыл бұрын

I love this engine! I'd chose it over the 318 v8 any day.

@fordnut4914 4 жыл бұрын

They should have known recessing that carb plate would restrict the flow.

@LionWithTheLamb 2 жыл бұрын

If you watch again they also appear to have a 4bb to 2bb reducer on it as well.

@nalgene247 Жыл бұрын

Exactly, especially after they picked the later model IM for better flow...

@kickinwinghotboi883 2 жыл бұрын

You have no idea how many times I've watched this episode lol as an owner of a jeep with the 4.0, I have a personal interest

@pillipino3788 2 жыл бұрын

Beauty of an episode guys

@dr.hugog.hackenbush9443 4 жыл бұрын

Someone should produce an aluminum replacement block for these. The last thing these Jeeps need is more weight with an iron lump up front.

@Miftr6 4 жыл бұрын

Finally. A good video for a jeep engine build and good links for the parts

@ronaldstewart1986 3 жыл бұрын

I used to be a tech at Chrysler and I've seen this engine over heat so bad the block started glowing red and never blown the head gasket or warped the heads. This engine is bullet proof

@revolutionday1 19 күн бұрын

Then you also probably saw plenty with shattered pistons.

@bradhanrahan1729 3 жыл бұрын

My dad had a old 89 YJ wrangler and damn it was bullet proof him and drove that thing everywhere

@blackericdenice 4 жыл бұрын

You could make 240 hp with the stock head. Once again selling people something they don’t need.

@PiDsPagePrototypes 4 жыл бұрын

There didn't seem to be much gain there, sure the ports are bigger, but the valves were said as "same as stock",...

@skylinefever 4 жыл бұрын

@@PiDsPagePrototypes That may be true, but the head replaced bathtub chambers with heart shaped chambers, which is supposed to improve power.

@JeffDeWitt 4 жыл бұрын

The later 4.0s have a problem with cracking the heads, if you have one of those this head would give you a bit of a performance increase both because of increased power and decreased weight... but if I was doing it I'd stick with the stock injection system, or maybe bigger injectors.

@dembrowi_n_c.5111 4 жыл бұрын

Best combination is the old 242 block with the 258 crank, the '96 head, 01 horseshoe intake manifold, tri Y header, and coil packs, will do the same as what they did.

@fishhuntadventure 4 жыл бұрын

Dylan Dembrow No! If good engine building practices were used they’d pull well over 300. 350+HP is common

@mrburgermaster 4 жыл бұрын

Why not upgrade the port injection design with manifold porting? It would be much simpler as you're leveraging the original design and better for cold weather conditions.

@808bigisland Жыл бұрын

Owned one in a 72 I6, 3.8l in a Jeep Commando. Ça 130 HP. Smooth and reliable. Definitely an all time favorite.

@dmzflightmedic 4 жыл бұрын

Over the decades we have owned 4 Jeeps with 4.0s and two with 4.2s... very good engines, very cool build.

@danhambrick6331 4 жыл бұрын

Nice job guys.If you love Jeeps,you got to love the 4.0L.

@bgjb-r1499 3 жыл бұрын

A carburetor, no way!! Unless I’m mistaken the Jeep 4.0L had fuel injection system which was profoundly more reliable. I understand that 50 or so additional HP with the reduced weight will translate into better performance but I’m not so sure it’s worth the money or time and effort.

@JeepTJWheelin Жыл бұрын

Definitely agree

@nancysmith9487 3 жыл бұрын

Nice accomplishment... thank yous for sharing your knowledge and experience... nice pocket protector and organized

@coiledsteel8344 3 жыл бұрын

This one is WORTH REBUILDING!

@your_name_here-oi6zv 4 жыл бұрын

My jeeps has a 232, it's a 73 dj5. Really cool jeep

@anthonylugo9678 4 жыл бұрын

Hold up Boss, first off after you Frankesteind that intake for injection you used a carb for your goal. How realistic is that to do at home? THAT setup there wouldn't even let me button up the hood. Nice build if you have a surplus of cash and tools though.

@Clean97gti 3 жыл бұрын

And depending on which state you live in, the emissions inspector would take one look at that, check the book on what its supposed to have and fail the Jeep. Yeah, you got a nice carb setup and a Jeep you can't register or drive on the street. Fail.

@robertcolfack26 3 жыл бұрын

Love that inline 6 fantastic rebuild guys.....

@Bull53 Жыл бұрын

That's cool! I appreciate your builds on 6 cylinders. Thanks Guy's!

@urastinky1 4 жыл бұрын

I'm curious what they used to block the old fuel injector holes in the intake manifold, looked pretty trick

@Schwarttzy 4 жыл бұрын

Not a fan of your old school fuel injection and carburetor, should have used the factory fuel injector location

@jackyong815 2 жыл бұрын

Love it! ❤️⁠ ⁠ As a Mainland Chinese, stoked to know Jeep is now owned in part by Dongfeng of China 🇨🇳 #MadeInChina2025 #BeltAndRoad #BeijingOlympics2022 #OccupyMars2024

@jamesdaple9951 2 жыл бұрын

Looks like a smooth runner !!

@richfarfugnuven6308 4 жыл бұрын

You guys need to cover how to EFI this build as guys like me that offroad the shit out of these engines at high altitude can not run a carburetor.

@flinch622 4 жыл бұрын

Yes sir: covering alot of altitude is where EFI wins [with proper mapping and good mass air flow sensing]. That said, if you can stay at relatively the same altitude, a well tuned carb is my preference - vacuum & velocity don't crash or lock up like a computer can. If I ran pike's peak, I want fuel injection.

@superkillr 3 жыл бұрын

@@flinch622 Uhh yeah.. Carbs are awesome for rock crawling.. if you like stumbling bumbling and dying engines.

@Craptastic760 3 жыл бұрын

I'm with you, screw carburetors. I'm tired of losing 1/3 of my power at 7,000 feet even with a jet change.

@trevorthomas6043 4 жыл бұрын

Wow they are using the cork gasket on the head,most people change that.

@kb9oak749 4 жыл бұрын

7 main bearings. Seven. That is why these motors were gold.

@unclenoidentity186 4 жыл бұрын

Straight six 66 The beasts straight six. This engine is now possessed.

@nopenone9399 4 жыл бұрын

You know I used to love shows like this when I was in high school. But now 15 yrs later as a professional watching these shows it is a joke. That intake manifold is not designed flow fuel its design the air that's why it didn't work. And Why would you go from a multi-point fuel injection to an EFI design and also you won't find a professional mechanic out there that uses e3 spark plugs or that likes doorman

@gregorylankford114 4 жыл бұрын

Autolite or NGK all day

@donziperk 4 жыл бұрын

And gutting the valve cover baffles to clear the roller rocker. There is a cheap spacer available for the stock valve cover. Ugly paint color as well.

@donziperk 4 жыл бұрын

Zac none So it wasn’t just me that cringed at the plug choice.

@donziperk 4 жыл бұрын

K J I just wouldn’t do it. Not going to put my reputation on the line just too use crap parts from a sponsor.

@gxdjoeybaby07 3 жыл бұрын

agreed, i think those elevated runners on the middle 2 cylinders are going to make for a short life span on this engine

@2000freefuel 4 жыл бұрын

FYI you really should consider turning the throttle body/CARB 90 degrees to better align the primary and secondary circuits! FWIW the primary barrels should be furthest from the manifold, and the secondary barrels closer, so a fancy throttle cable is in order...

@TheMajictech 6 ай бұрын

Exactly, take advantage of the primary’s being farther away (torque) and secondary’s closer/ shorter (hp) just like the custom 4 barrel intake I made to run an s2000 Honda engine in carb required class circle track racing. Literally handed every ford 2.3 and quad 4 Chevy their asses.