Chrysler 318 Stroker - First Fire and Build Information

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Күн бұрын

MOPAR 318 to 390 Stroker First Fire and Build Information
This video provides a glimpse into a personal project and features a brief story, build information and first firing for a Chrysler LA 318 (390) stroker motor.
For a complete build and walk-through, check out our three part 318 to 349 stroker build on • Project Fast Fish: Chr...
Although this (318 to 390 stroker) video debuted on Cadle’s KZfaq Channel, it video is credited for the creation of the Project Fast Fish video series and the Mic’s Motorworx channel.
The important specs are listed in the video along with the first firing on fuel.
Planning, assembling and building this has been a family venture involving the father, the brother and the producer of this channel. At the time of filming, we'd been waiting for the opportunity to make sure everything was assembled perfectly and operating accordingly. It was placed on the engine stand for the "breaking in" process.
Check out "Intake Swap" for the final run on this engine.
Thanks for watching,
Mike
From Mike: A lot of love out there is being shown for this build. As with any build, there a plenty directions to go in. We chose the flat tappet cam as a way to reflect on my Father's background as a racer, which fed the family's love of car culture. We are confident cam choice and break-in procedures ensure long engine life and lots of fun for the project.
Don't forget to subscribe to see what happens next to Project Fast Fish.
318 to 390 Stroker
Block:
Chrysler LA
318
.030 bore
3.94” bore each cylinder
Heads:
MOPAR 360 Heads
Gasket matched and ported
Massaged Valves
186 / 202
COMP Cams Roller Rockers (1.6 ratio)
Rotating Assembly:
Balanced
Crank:
SCAT 9000 Series
4” Stroke
Pistons:
Diamond 50001
Flat Top
Rods:
Scat 4340 Pro Comp
I-Beam
Cam:
Crane 694561
528 lift
504 in w/ 302 duration with factory rockers
528 out w/ 312 duration with factory rockers
RPM Range 3000 - 6500
Intake on video:
Edelbrock Performer (This was swapped for a Performer RPM in a later episode)
Carburetor:
Quick Fuel SS-830
Mechanical secondary
Helpful Link:
Summit Racing Engine Running Stand 918015 // bit.ly/35IbXpY
Some of the things used to produce our episodes:
Canon EOS M50 Camera // amzn.to/35QSLXh
Rode Video Mic Go // amzn.to/3uZCtDX
DISCLAIMER: This video description contains affiliate links. This means, Mic’s Motorworx and On The Mic Entertainment may receive a small commission when you click on one of the links above. It’s OK to share the love.

Пікірлер: 71

@slant6guy 3 жыл бұрын

The Rodney Dangerfield of Mopar v8 motors = LA 318 c.i. and it's hybrid AMC cousin the 5.2L MAGNUM.

@MicsMotorworx 3 жыл бұрын

Not a lot of respect for sure. 🤔😅 There are those in the know. Thanks for watching.

@Formerlywarmer 8 ай бұрын

What’s this AMC 5.2 magnum u mention ? 304?

@dahut3614 2 жыл бұрын

From the Crane catalog, cam is 232/242 @ 0.050" 114° centerline, with 504"/528" lift.

@MicsMotorworx 2 жыл бұрын

10-4. www.summitracing.com/parts/crn-694561

@ralphvalkenhoff2887 3 жыл бұрын

Good video, thanks for sharing.

@MicsMotorworx 3 жыл бұрын

Thanks for watching.

@79tazman 3 жыл бұрын

I'm a mechanical secondaries guy too I put a 750 on my 318 and she would bog a bit when they would open so I had to do some tuning on it but now it opens and goes now

@kencohagen4967 3 жыл бұрын

For the longest time I wouldn’t run anything with that long of a stroke. But with the strength of the new cranks and rods it’s now possible to keep things together. I’d love to build one of these now. Either this or use a 360 crank with a 3.58” stroke for 349 cubic inches. This is where strokers started for the 318, because their blocks were tough but the 360’s had issues with cracks in the lifter valley. That left cranks laying around unused and someone with a brain and some time 9n their hands put one of these motors together, on paper, and it was off to the races. Now the problem is finding a inexpensive, fairly straight, untrusted car to build. They used to be everywhere in AZ. Now they’re gone. I think a lot of them went back east where apparently, people make money. Th rest got used up and wrecked by the usual loose nut behind the wheel.

@MicsMotorworx 3 жыл бұрын

Thanks for the post. There's a lot of love for the LA small block out in world. So glad you mentioned a 349 using a 360 crank. We built one, fired it up and put the videos on our channel. Thanks for watching and let us know if you run with a build. 👍

@robertheymann5906 Жыл бұрын

Love the mopar's!

@MicsMotorworx Жыл бұрын

Yes! We do too, but ya never know where the next project will lead.

@robertheymann5906 Жыл бұрын

Absolutely brother! .just finished up a 1.0 three cylinder Geo metro motor I never imagined rebuilding. Fun little thing, now balanced with a lil' compression increase. ~life is good ~

@MicsMotorworx Жыл бұрын

A 91 Metro 2-door hatch with a 5-speed was my first ride at 16. I never did find the "Singer" inscription on the side of the engine block :D

@zAvAvAz Жыл бұрын

awesome

@MicsMotorworx Жыл бұрын

Thanks Dennis. We look forward to getting into Project Fast Fish soon

@Formerlywarmer 8 ай бұрын

Just keep at it doing ur thing kidd! Lotta folks that have never built anything here giving you plenty of advice as always and maybe someone will ask about breaking in the cam one more time 😂😂😂MOPAR2YA Buddy 😎

@MicsMotorworx 8 ай бұрын

Thank you. That 390 produced some good numbers, and the restoration is coming along nicely. I appreciate your feedback and encouragement.

@Formerlywarmer 8 ай бұрын

@@MicsMotorworx I’ve been a Mopar man for over 40 years and had and still have several cars and trucks. I’ve built a lotta motors stroked big and small blocks but never did much with a 318 …. their potential is huge. I’ve got several 340s currently and I know just how iconic of a small block they are but the 318 with available parts now are just as good and way more plentiful and cheap for a while longer anyway. MOPAR2YA

@robertweitlauf4653 3 жыл бұрын

nice engine, you should start it and let it run at high rpm for a while just to be sure the cam breaks in. usually the cam looks good but the lifters start to fail. start it with the valve covers off and check to make sure the push rods are turning, if they are your in good shape if there not i would pull that lifter out and inspect it. have fun with it , car should be a blast to drive. dont forget to put a stall converter in it and some 3.90 gears

@MicsMotorworx 3 жыл бұрын

Thank you Robert. I think there's a lot of fear out there in regard to the flat tappet cam. It appears that the underlying adage is they are simply older and out dated. Personally, I think flat tappet cams are misunderstood works of classic engineering which fit a build conforming to the era. Thank you for watching.

@robertweitlauf4653 3 жыл бұрын

@@MicsMotorworx there is a lot of fear when it come to flat tappet cams. people dont understand them, nascar still uses them. unfortunately not all of us can afford hydraulic roller cams. untill the price comes down on them im not using them. all my roller stuff in my race car is used, i did have the cam reground it was $80.00.

@trevnerdhubbabubba6230 3 жыл бұрын

Did you end up going with the high volume oil pump for the 390? I know it sounds like a good idea, but can it be detrimental?

@MicsMotorworx 3 жыл бұрын

Yes. High volume doesn't always equal high pressure. I believe we put a Melling unit on the 392.

@trevnerdhubbabubba6230 3 жыл бұрын

@@MicsMotorworx any problems with the high volume one? I know using a high quality filter is necessary, like a Baldwin?

@MicsMotorworx 3 жыл бұрын

Nope. No probs while they was on the engine test stand (349 or 392). Filters made by Baldwin or Mann are awesome. 👍

@dustinshadle732 3 жыл бұрын

all the most notable motors from factory tent to be between 380 and 460cid. i think the happiest range for the best numbers and ability to pull high rpm builds are in that range. PS, Man, idk if youve got her in the car yet, but its worth having an engine tuned on a dyno, chassis dyno for sure gets the best out of your driveline and gives you more idea of how to drive it too

@MicsMotorworx 3 жыл бұрын

Thanks. Yeah, big blocks are notable, but there's just something different about the small block. The Barracuda isn't ready for the engine yet, still trying to raise some funds for the body work needed. A lot of metal needs to be replaced. Having a dyno tune is definitely in the vision and will be featured on the channel when it happens. 😁 Thanks again and thanks for watching 👍

@justina3221 4 ай бұрын

Lol

@trevnerdhubbabubba6230 3 жыл бұрын

Anyone know if you can do the same stroker mods to a 5.2 magnum engine?

@MicsMotorworx 3 жыл бұрын

Sure can. There are only small changes from the LA to the Magnum block. However, one must make sure and verify the components. A little research goes a long way. Good luck and thanks for watching. 👍

@oscarwalton1188 3 жыл бұрын

Short answer yes

@AmericanDefender 3 жыл бұрын

Did you break the cam in before this vid? You're supposed to start it and immediately bring it to 2k rpm for 20 min. Otherwise you'll wipe the cam.

@MicsMotorworx 3 жыл бұрын

Covered. 😉 In the previous comments. Thanks for watching.

@deniseb3897 3 жыл бұрын

Sounds like it's going to be a brute of an engine. But you said that it had a Performer intake manifold. That's more of an economy MPG intake, My Dad had one on his 350 c.i. Chevy to make it more efficient. Did you mean that it had a Performer RPM intake, because that is more of a performance model. I'm by no means criticizing, it's your combo, just clarifying. Can you imagine how excited your Dad would have been if he could have gotten a stroker crank for it. TORQUE!! Congrats on your project!

@MicsMotorworx 3 жыл бұрын

Thank you. It's going to be a fantastic engine. We bench estimate 480-500. The Performer that was mentioned was initially used to test running and break-in. We later switched it to a Performer RPM in the Intake Swap video. Thanks for watching and stay tuned in for build as it moves forward.

@tomdamon7208 3 жыл бұрын

When did you break in the cam ?

@MicsMotorworx 3 жыл бұрын

During and after the first firing, but before swapping the intake for the Performer RPM. We're quite confident we followed a reliable process. There's been a lot of input from folks in the comments, and a lot of ideas out there for the process; many which have merritt. Thanks for watching 😉

@kellyhumes1217 3 жыл бұрын

Did you break in the cam?

@MicsMotorworx 3 жыл бұрын

Of course. We want to make sure the investment lasts. Lots of love for this one. Thanks for watching 👍

@kellyhumes1217 3 жыл бұрын

Nice!!

@trevnerdhubbabubba6230 3 жыл бұрын

Ever dyno this engine?

@MicsMotorworx 3 жыл бұрын

We hope to in the future, and will have a full video when that happens. Thanks for watching.

@jeremydavis340. 3 жыл бұрын

Nice build but I believe your heads are limiting you here. You have the 360 heads with the large pushrod holes which bottleneck the intake port. Port match really doesnt do anything for these. Go with a set of J heads. Also that bore is so small the 2.02/1.86 valves might be to big for efficiency. Maybe a 1.88 intake make very close to same power because of more complete burn

@MicsMotorworx 3 жыл бұрын

There's definitely a lot of love out there for the small block LA. You note a great route for builders to go in. There was machine work done on our 360 heads, including a multi-angle valve job, mild shave and such. Pop keeps on touting "stage 2 race heads" from wherever he bought them from. It was the 80s. If we were to make a change, we'd go with an aluminum milling to match the stroke and new intake. Thanks for watching 👍

@jeremydavis340. 3 жыл бұрын

@@MicsMotorworx thx for reply, again nice vid and build

@GrantOakes 2 жыл бұрын

2.02 intake valves were GREAT for the 69-72 340 motors, so with 390 cubes drawing in air they'll be just fine, maybe even a tad undersized. A port job will really help. I read that even with the smaller 318 bore you can go to a 2.05 intake.I might be wrong but I thought the exhaust valves were all 1.60 in their small block series, except the stock 318 had 1.50.

@captainhargrove113 3 жыл бұрын

My lord. Why didnt you grind/clean all that cast flashing out of that block. You put all those quality parts in, yet left the 2nd highest source of block cracking all through that lifter valley.

@MicsMotorworx 3 жыл бұрын

It was determined by the "Old School Racer" that wasn't required for this build. The block is "well seasoned" and there would be plenty of oil flow without the grinding. On that note, there is a build scheduled in the next few months where then valley will be cleaned.

@steveburlingame1935 Жыл бұрын

So wat is the horsepower on this

@MicsMotorworx Жыл бұрын

We changed the intake a little while back, but the video of the dyno session with results releases on January 18th.

@BuckI2Bdad 3 жыл бұрын

I would be surprised if the cam lobes are not wiped out

@MicsMotorworx 3 жыл бұрын

Lol. Be surprised. We ended up going with a different intake. Everything looked great in the valley. The ticking was indeed from an exhaust leak between the header and elbow. Thanks for watching.

@79tazman 3 жыл бұрын

The only way the cam lobes would be "wiped out" is if he used flat tappet lifters and did not break it in but looking at the video I'm sure they went with hyd roller lifters

@MicsMotorworx 3 жыл бұрын

@@79tazman Thanks. We did go with the matching hydraulic flat tappet lifters (99278-16) for the cam. The "old man" has years of old school building experience and pretty much facilitated the entire build and break in process. Thanks again for all the feedback.

@MicsMotorworx 3 жыл бұрын

We used hydraulic flat tappet lifters. Crane Cams 99278-16.

@americawhereareyou 3 жыл бұрын

One mistake I see guys do when building an engine is go crazy with the carb. 830cfm on a 390 is waaaaaaay overkill. Even if 100% volumetric efficiency was achieved, that 390 will never need more than 700cfm and will be a dog at lower rpms. A smaller carb allows for higher air velocity and better fuel atomization especially at lower rpms. it will most likely spend 90%+ of its life under 4000. I personally like the older Carter AFB 625 spread-bore carbs for something thats going to be driven frequently on the street. The small primaries are fuel efficient and the secondaries have the same bang at 3000 rpm when stomped on as a double pumper but without the bog under 3k and poor gas mileage.

@MicsMotorworx 3 жыл бұрын

Interesting post. We noted there was an issue of running too rich with combination of Edelbrock Performer intake and the 830cfm carb in question. Given the Performer was only designed to supply 600-650 cfm, we figured there would be too much fuel being dumped in. When we initially built the engine, we decided to hold off on upgrading the intake to a later date. Once we changed the intake to an Edelbrock Performer RPM, we noticed immediate changes as the new piece was designed to handle 650-800 cfm. We admit that we will more than likely need to run smaller secondary main jets. Unfortunately, we are currently unable to dyno tune the engine and the Barracuda is still far from road worthy. We did find different calculations supporting the 830. Yes, those calculations supporting 830 cfm assume full out racing applications, which is part of the intent of the build. To create a street pounder that will "show out" on the quarter miles runs, yet work as a powerful weekend cruiser. An homage to my father and his days in drag racing. Anyone who is wanting to build a similar configuration as this one would definitely see happy results with the 830 cfm carb, Performer RPM intake higher flowing aluminum heads.

@michaelcadle351 3 жыл бұрын

This one is written in Uncle Tony's voice. I can hear him speaking this as I read it.

@oscarwalton1188 3 жыл бұрын

Depends on the cam and any head work a big cam 318 usually get s a 750 CFM so a stroker 392 with that big of a carb isn't out of the ordinarile

@MicsMotorworx 3 жыл бұрын

Give us fuel, give us fire, give us that which we desire. Thanks for watching.

@oscarwalton1188 3 жыл бұрын

@@MicsMotorworx the general rule is the displacement of the engine times 2 = CFM so 780 CFM

@approachingtarget.4503 2 жыл бұрын

Talk about building something way out of its design. That cam and cubic inch needs 4000 rpm to even make enough power to launch. Ive built similar combination and they will get walked all over by a build that is designed around a better combination.

@MicsMotorworx Жыл бұрын

Interesting. Our video of the dyno session for this will launch 1/18/23.

@dschaub9535 3 жыл бұрын

65,000 RPMs 😂😂😂

@MicsMotorworx 3 жыл бұрын

Yep. A little error in speaking. Thanks for watching 😂

@Anarchy-Is-Liberty Жыл бұрын

ROFLMFAO!!! Man, he could teach the Pro Stock guys a thing or two!! LOL!!

@Anarchy-Is-Liberty Жыл бұрын

Cancel the music!! Seriously! Also, you can see one of the plugs arcing to the header! Between 1800-2000 rpm until the lifters break-in for about half an hour or more.

@MicsMotorworx Жыл бұрын

I had another venture in mind when this video was made. Didn't notice the arc, I thought it was reflection from the timing light. Frame rates of the recording device vs. the variable of ignition with rpm. Good catch. That's probably why we went with different ignition cables as we moved forward. Yes. We broke in the cam and such. Thanks for watching.