Watch the build here: kzfaq.info/get/bejne/gdCPa8Kk16ymeqs.html

I'd love to see more v6 builds. A buick 3800 series 2 with the m90 supercharger would be so cool

I have had many 4.3 service vehicles and I beat the hell out of all of them. Max RPM, wide open pulls from every traffic light. Never an issue never burnt oil. Even after 200,000 miles. Great engine…

Really great job on the old 4.3. They are good engines when done properly as you’ve demonstrated

Frankie is turning out to be a great addition to the team. The more he is on screen the more he loosens up and acts more natural.

Please put it in a first gen S10! I would love to build a similar setup out of the stock 4.3 that is in my truck.

00:52 - Pat's lost weight. Lookin' good Bro.

We found out somewhere between 600-650hp the factory crankshaft is the weak link. We bent ours .004”, just smeared a main bearing which was very lucky it didn’t break. The Bad news, nobody makes an easily available forged steel 4.3 crankshaft and the limited production NASCAR crankshafts are $2800.00+ 😳

Bullet proof 4.3!🇺🇸🇺🇸💪💪

I've been following this build and I love it! This is almost exactly what I've wanted to do to my 2006 short bed Silverado. It came factory with a 4.3 and there is plenty of room in front of the motor for twin turbos if you are feeling that froggy! If you need something to throw that in let me know, i'd offer up my ride for it, lol!

I've owned several vehicles with the 4.3 and they are super reliable little workhorse engines. I knew they were tough but this really sealed the deal!

Should do a sustained load mpg test, lug em down at 2500 rpm and see how the gm 4.3 does vs the turbo 300

You even had me on the edge of my seat in Australia...lol nice work guys, that was fun.

Still looking for ya'll to put an Iron Duke together.

My 87 one owner 4.3 went 475k miles and i never opened the motor up or had any issues besides a leak from the oil pan gasket. Awesome motor plenty of power super reliable never left me stranded

I could only dream of having this kind of 4.3L in my 1993 Jimmy. I know I could make it happen, but that Holly super sniper...imma keep my eye out for that, the 'spider injectors' aren't the greatest and the plastic clips don't last long, especially with constant heat. Amazing build...and outstanding numbers👀🤤

Neat to see my beloved 4.3l hopped up and tested. Thanks

Frankies come a long way in a short time he’s been with you folks and us. Good job Frankie I’ve already learned stuff from you :-)

262 HP. Nice! 1HP per cubic inch. Not often you see an older iron V6 do that. These originally made 190'ish HP.

My neighbor and I both bought new 1988 S-10s when the 4.3 first showed up on dealer showrooms. His only lasted 100k miles and his friend rebuilt it and stuck a Holley 4bbl on it. Not for performance, just drivability. My 1988 ran like a champ into the 180K miles and I sold it to a buddy. He drove it for years. Those were great motors in their day. The V8 in my Silverado has been amazing. Fifteen trouble-free years and counting.

You guys really had fun with this one! Cool build, and cool content!

He’ll guys, I built a 4.3 many, many years ago for my Buick Grand National. Dual turbos at 73 mm each and I put my alternator and my power steering pump at the 7:30 and 4:30 location underneath my turbos with a big Ron Davis radiator and heat exchanger. Made 552 hp!… but of course, I had a steel crank made and billet rods and forged pistons with a custom (my specs) Crower camshaft. Confirmed 178 mph on route nine going from Middletown to Old Saybrook, Connecticut in nine minutes and 12 seconds but the car got light and scared the hell out of me at that speed! Keep up the good work, and dude, you don’t need that many pens in your shirt pocket! 🧐🤨

"It only needs one thing - more power!" >Donut has entered the chat

I've been a fan of Frankie since day one.....But OMG, he's truly become a very important part of this program! His knowledge of turbo installation, as well as welding skills have truly impressed me. So glad to see him working with Pat, he's become an excellent addition to the show!

Pat has really grown on me. Love that they are showing more of his silliness lately. Still miss Mike Galley tho 🍻

so glad you guys finished this project off with boost! been waiting for this one.

Y'all should do a vortec 4.3, it's crazy how durable those engines are

The 4.3 Vortec is such a great engine ❤

I’m an LS guy that LOVES the content y’all have doing all kinds of mods to LS motors allowing us to have more knowledge going into builds but seeing boosted v6s is so cool to watch and seeing more would honestly be perfectly fine with me especially since nobody else does it! Love the content as always guys y’all are awesome

That engine would go great in a Chevy Astro or GMC Safari. It would be a beast.

Dang! That little six cylinder makes as much torque as my turbo diesel V8.

Pontiac Fiero GT V6 Turbo……….OHHHHHH YEAH

That motor is definitely making some good power

Thanks for doing this production! I always wondered what a 4.3 could do if built right with a power adder. I very much enjoyed it!!!

WOW ! Outstanding build! You guys just changed my opinion of that V6! Thank you for a fantastic video!!

I have a 1988 S10 Blazer with the stock 2.8 V6. I think this would make a great project for the turbo 4.3 build. Thanks for the video series on the 4.3 Chevy V6. Your fan Mark Boarman.

That 4.3L V6 is probably one of the best motors GM ever made. I had one in a Chevy pick up truck.. It's a big 6 cylinder and it has a lot of power.. GM actually made a few really good 6 cylinder's over the years.. They did a 2.8L that they bumped up to a 3.2L that they used to put in the Z24 Cavilers.. That 4.3L is about as close to an 8 cylinder 5L as you can get. I had a full size 8' bed and loaded that thing up like it was a 3/4 ton Truck even though it was a half Ton truck .. I could tow with it. GM made a yearly solid motor with that 4.3L..

That would be great in my 98 gmc Sonoma. It's a 4wd I want to convert into awd and make a gen 2 Syclone. Maybe one day... nice build 😉👍🏼

The turbo builds are awesome !

Finally somebody does a 4.3 V6

you saw my comment in the first video and now it deserves a nice little home in a chevette!

Insane amount of power from that tiny engine 😳.

That's awesome. I'd bet you could throw a set of worked vortec heads on it and a full forged rotating assembly and really get some serious power out of it. I really wanted to build a 4.3 for a long time but iv turned my attention to the l67 3.8s now. My sc Impala SS made me want to build one to put into my S10. Maybe someday I'll pull it out of the weeds and into the shop...

This needs to be taken to the next level with 96+ vortec heads and add a 2nd turbo!! I’m building a 275 cube V6 with twin 58/55 turbos, Brodix aluminum heads and a GM crossram intake modified for EFI and dual DWB TB’s. Should be good for 2.5+HP per cube.

I built a 1994 4.3 V6 for my 2004 S10 Blazer ZR2. I had splayed 4 bolt mains put in it. Eagle H-Beam rods. Mahle forged 22cc dished pistons. Comp Cams 500/510 lift 270/276 duration cam. Vortec heads ported polished with 2.02/1.60 Manley stainless steel valves. 1.6 aluminum roller rocker arms. ARP head studs and main studs. EFI Connections 1x cam sync, 58x reluctor, and timming cover. Holley HP EFI ECU. Individual LS coil packs. 1992 GMC Syclone intake. Had to 4L60E transmission rebuilt to stage 2. Put a 1995 Oldsmobile Bravada transfer case and right side axle shaft and hoising. A 2002 S10 ZR2 cast iron front differential.

I know exactly what I'd put that in an early S10. A standard cab short box with a road race suspension kit.

The 4.3 in my Blazer has Ober 370,000 miles. Some tlc and it runs like a champ. I'm convinced this is the most durable motor to ever exist

Awesone work guys, cool to see the motor running after seeing it in person.

I've always loved the 4.3 l I have a 4.3 in my truck right now and it's a c1500

I would like to see you use a centrifugal supercharger on some of these builds espically on straight 6's.

I'm loving the V6 appreciation run. Any possibility of doing builds for Mopar, Ford, or Foreign V6s like Toyota?

Mounting the turbo on a bracket bolted to the head was a slick move, takes stress off exhaust pipes. That makes a custom turbo a lot more do able. I might have to take a look at this setup again!

Excellent build up, quality work guys.

Os cara são brabo , topzera

The 300 made 122lbs tq per litre and so did the 4.3 The 4 3 just required a pinch more boost

Awesome build

Amazing talent and knowledge from a couple of separate generations with different points of view!!! Great respectful points of view that create AMAZING RESULTS!!! Keep it coming guys! We are all ears👂👂👂‼️

This is why I love boost and particularly turbos. When boost comes on, you get instant torque gains and it can carry throughout the rev range. I know this is not an exhaustive lesson on turbos, but the audience might want to know about wastegate prioritization for controlling boost. Not critical in this application, but imperative in keeping an engine from over boosting. I've also never seen anyone put the O2 sensor before the turbo. I don't think it would change much other than giving the sensor some positive pressure to fight against. Franky said he likes V6s more now because of this. The Ford Ecoboost is an OEM example of this working, but there are several OEMs that have done this. Straight 6s are bit more common, but 6 cylinders tend to be more harmonically balanced and smoother running. Turbos make a great match with that. Now to get you to like 4 cylinders more :-)

I'm sure the crank shaft appreciated yall stopping at 13.8 psi

The 4.3 is a fantastic engine. Some years had the awful hard plastic intake gaskets that would disintegrate and create large leaks. If you were lucky they’d leak externally. If you were unlucky they’d leak into the valley.

This engine in a Pontiac fiero would be sweet!

Wonder what 96+ vortec heads and edelbrock vortec swap intake would have made na on that.

Wonder what a set of Brodix heads and E85 would do with that combo...

Hell yeah! I've always wanted to see this buildup in a project.

My 93 Typhoon is my dream car for a reason. I love it. With an MSD, decent exhaust and a few tweaks it makes 490 street legal horses. The ricers here in Caliornia absolutely hate mè.

Did you use a tbi or vortec motor?

I’d love to see this in something strange, like an old skylark convertible 😂

Great job! Great information!

This was a great episode! This is like a 4.3 Sy/Ty motor on the cheap. Everyone is starting to navigate to the "Ameribarra" Vortec 4200 inline 6 because completely stock--stock bottom end, stock valve springs, hg, pistons/rods, they've been known to hold 800-850 hp which is amazing but these old 4.3 make terrific budget street motors. If I had an old S10 or S15 Jimmy, I wouldn't be so quick to throw an LS in it. I'd build up a solid bottom end on one of these 4.3, send the heads to get ported, size an appropriate turbo and let it eat. 600 streetable and reliable hp shouldn't be out of the question plus its NOT an LS!!

Just remember the cyclone and typhoon had turbo 4.3s stock from the factory. Ive seen many of these great engines run low 1/4 mile times.as a Gn owner i prefer a v6 turbo over a v8 anyday

I would love to see the 4.3 being dropped into a small car like the Datsun 510

Big Pat showin the ol’ 4.3 his “OHHHH” face!!!

this was amazing!! love v6s are getting attention

Cool viddy! And for once I can relate.., I have a 4.3 in my 2001 GMC Sonoma daily driver that I was lucky enough to buy (first ever financed, paid off early..,)in 2017. I have 99635 miles on the odo, & have replaced the fuel regulator/spider, starter & currently chasing down a service engine code P0401( secondary air system) that appears to require replacement of the check valves to clear the code & pass smog inspection.., having said all that the power has always been more than I needed & with today’s gas prices fuel economy is still holding up @ 15-18 city(whew..!). I love my truck. I am not going to beg, whine or blow smoke, just keep doing whatcha doing, I will continue to watch & enjoy!! Hell ya’ brother!

Love the build. good job!

One BAD Mama Jama! I love this! Great and wonderful work Pat and Frankie! Keep 'em comin'! A real tribute to the Turbo Buicks of the 80's and the GMC Syclone and Typhoon of the 90's! : )

Outstanding video gentlemen!

Love this! I can't wait to get my lil 4.3 turbo running

The best program. Watch from Brazil

Good pulls! Keep it up!

That’s so awesome! Love the Corporate Blue too

Awesome build guys! I was thinking of putting a tbi 350 in my s10 blazer but now I have new ideas!

A well machined 4.3 is a great engine. Had a 94' and it was one of the best engines I ever owned. Always wanted to drive a Cyclone. When they drilled to far into the water jacket to add the supercharger is the only problem I remember with those.

You can tell Pat is teaching the kid as they go. I think Pat is a really good, patient teacher...

I NEED that in my 4x4 Chevy Astro!! Great project, Guys!

I loved the 4.3 in my 1999 Blazer. So much torque stock.

I have an 05’ Reg. Cab SWB 2wd 4.3L OE rebuild nightmare. I’ve replaced the Engine & Trans among $9k worth of other stuff. I did all the work myself. I want to get this truck into a much more throttle responsive 400hp-450+hp romper with a strong solid Hyd roller cam, a strong turbo, headers & exhaust, new worthy intake & most importantly a NEW fuel management system that actually works for this truck. The spider injection system sucks to say the least. I would & could really use some help from you guys. I’m $17k plus deep in a $4k truck (in perfect condition) and I’m so tired of failing with this project. And so is my wife. I started this driveway project in the summer of 2019 after it completely failed me one day trying to drive to work as it was my basic daily driver. Long story short, after checking everything I could without tearing down, I got nowhere. I ended up replacing everything single thing available. Some stock OEM parts I just can’t find. It fires up and idles fine from a cold start. It gets to about mid half temp then struggles & dies. I need some serious help. I’ve already bought a new truck. Now this is a special project truck & so will be the original engine & Trans which are sitting in the back/bed of this truck.

Your welcome to put that engine in my 2001 S10 Extreme. Its been sitting with a blown head gasket for 2 years. Very sentimental truck for me

A Totally Awesome Build

So awesome fellas great work 👏

I had a 1999 S10 ZR2 5speed pickup for a number of years. Great truck other than not much power. I always thought a single turbo would be a good thing for the 4.3 in that platform but no kits and I did not want to try and build my own. I like what you did, great series.

The 4.3 v6 was - is bullet proof great engine best v6 I’ve ever used or driven ! I had a 1994 Chevy Astro van work van I started a plumbing business with it lol I pushed it behind it’s limits could not believe what a great little van it was the Astro van was hands down the toughest best mini van of its day ! I use all full size vans now but i was broke when I started my business in like 2008

I have a 1990 ASC McLaren Turbo 3.1 Grand Prix with 175K miles on it. I would LOVE to see you guys do a GM60 degree V6 build. They used the 60degree engine in millions of cars from the early 80s to the 2000s including Camaros, Fieros, Firebirds, Oldsmobiles, Chevys, Buicks and of course, my Grand Prix.

Duralast will never last

Holy crap! How did I miss this!!!

OH YEAH, definitely digging this

Thanks for sharing 👍😀

Man that's so cool you guys.

I had a 92 Chevy c1500 long bed that I bought new w the 4.3. Traded it in 2000 and it had 100k miles plus and ran great. That engine in that truck would be awesome. Also had an 89 s10 w the 4.3 and nobody w stock stuff could beat it

Lol great content guys. Back in the early 2000s I wanted to do this in a ASTRO but I got married and the kids came lol. Now they are grown I can start playing around again.