How I put an L67 Supercharged 3800 V6 in an F body

[@jaydurych]

I think it was a great engine swap because of the fact that the supercharged 3800 not only makes good power but also has great fuel economy.

[@jeremyb4493]

Doesn't hurt that the 3800 was paired with a 4 speed geared to run 300 mph lol.

[@CrawfishCuban]

​@@jeremyb4493 what

[@limabravo6065]

A lot of people dont know that back in the day Ls engines werent cheap and everywhere, because all the junkyard units you can grab for a few hundred bucks were still on the road lol. And i did this similar style build in 2006 when i drove my 98 v6 camaro with no oil in it. It was winter, i slid off the road and a branch went all stab happy on my oil pan😮 So i went to the local yard with a shopping list and i got the L67 heads, intake, m90 mighty weez, and shoved all the sensors / injectors into my pockets because the brole struggle was real back then. So my short block was being rebuilt while i tried to figure out what the hell i was going to do for an intake elbow as i didnt want to cut a hole in my fire wall and have the air filter where my radio was. Then i remembered that Australia exists and their Holden rwd cars used the l67 with an intake elbow perfect for my purposes. Now this was asi said back in the day but ebay was a thing and the internet in general allowed commerce between continents so youd have thought finding a used intake elbow from down under would be relatively easy buuuuuttttt noooooo. It took months to find one and then work out how to get it from the land of all things dangerous and or poisonous and when it finally showed up it was cracked and just a PIA. So i took it to a local welder who was able to zap it and make it not be a giant leak. And just as that was done my short block was also done. So with refreshed heads, a smaller pulley, and an OG megasquirt i set to making my 3.8 dreams come true 😂. All said and done it made 302 hp at its 16in tires, after having demanded its tribute of about 5 months of my life and way more money than most 5 or 600 hp junkyard ls builds do today. Torque was good to at 338lb ft and the T5 transmission never even blinked outside of me smoking the original at the time 98k mile clutch before the swap. Its been so long that im pulling the motor just to freshen her up and seeing what i can do with the supercharger as the eaton huff and puff is about maxed out and ive since started building speeduino ecu's which beat megasquirt out in every measure i care about including how powerful the hardware is. So yeah cool build sorry for the novel butni broke my leg and im a little vored lol

[@hackjobhotrodshop5075]

How did you get the driver's side exit m90 Australian blower to clear the brake booster?

[@limabravo6065]

@@hackjobhotrodshop5075 funny you should mention that because I didn't. I thought about a hydroboost setup but then I remembered I'm not that smart so I went with a dual master non boosted setup. It's from wilwood and was used at the time

[@HypocriticYT]

Those brass fittings will never fail unlike factory plastic 😅

[@davidbroome6437]

1995 Rivera 3800 supercharged In my 1956 cj5 , m22 rockcrusher it's lots of work . Hope to be running this spring .

[@ItsDaJax]

I am so down for a V6 build, not everything needs a V8 in it. It's really a damn shame the 4.3 doesn't have enough aftermarket, because of how jaded car folk are.

[@C0rvette454]

Waste of time and money. Not enough of a market

[@ItsDaJax]

@@C0rvette454 Duh. Would still be nice, though.

[@pops3554]

​@C0rvette454 just got to pick up the right parts!!!! 01Silverado Corvette servo T/B torque converter Wanting on gears and sum headers Hope to get 🙏 to a low 15s on motor 😂 Sounds crazy but possible ...it breaks lose at 20mph!!!

[@pops3554]

T/B torque really woke it up!!!!

[@CDOES]

Great video. I really hope you follow this up with more videos following the progress of the car.

[@jaden.sanderson]

Man they really should have done these from the Factory. I would have put a supercharger on the Camaro RS, and then created a Firebird GT (like the early 4th gens) trim. Would have been perfect to slot in between the standard 3.8 and LS1 power trains.

[@Devocated]

Australia had the 3800 SC in the Holden Commodore base V6s and were rwd

[@Inthefoxhole]

GM should have offered a 3800 supercharged in the F body

[@Casey_and_Cars]

There was a concept Firebird with a SC3800 but it would have outsold the Vette. Same reason GM put 3800's, Quad Fours, or the turbo Pontiac/Opel engines. It would have outsold the Vette and F body cars.

[@JamesAddison-g9p]

Should be looking at the Australian l67 commodore and statesman for part's for rear wheel drive conversion.

[@hackjobhotrodshop5075]

I wish it could bolt on! The elbow goes on the driver's side on the firebird for left hand drive and hits the brake master and booster

[@Autonomia_para_Puerto_Rico]

Aussie do the bellhousing to put a Land Rover V8 behind the F Body / Commodore that's basically the same 3800 plus two pistons but made in aluminum.

[@C4VETTELT1]

I thought about do this to my 89 IROCZ at the time. My grandmother was selling here GS regal but I never actually pulled the trigger on it.

[@silverboltss2981]

Getting ready to do the same thing on a firebird but the L67 is going in as NA so we can fit a turbo kit. Only reason you won't make serious power on your setup is lack of intercooling, which looks like a clearance issue. Biggest thing that kept me from wanting to go the blower route besides the bigger gain

[@terrencehall7264]

You forgot that ethanol does not need intercooling

[@mikes4596]

@@terrencehall7264how much hp w cam and rockers lifters u think ud make vs a 750 eBay turbo kit on series 2 3800 plus turbo smart blow offs and goodies

[@terrencehall7264]

@@mikes4596 the turbo kit wil double whatever HP you get from the supercharged engine.

[@silverboltss2981]

@@terrencehall7264 maybe on low boost it doesnt. but have you seen what charge air temps on 10lbs looks like? I still wouldn't want that going through my motor. just cuz it can handle it doesnt make it efficient

[@madmitch7733]

3800 need to be in everything really

[@leeselset5751]

"Because weird projects" The best projects are the weird ones.

[@mysnackr]

Nice job. Very interesting. I'm curious how you got mid-12s in the quarter. The LS1 in these cars had basically 320-345hp and only ran low to mid 13s. The supercharged L67 I think produced something like 240 hp? How is it running a second faster in the 1/4 with 100 less horsepower than the LS1?

[@hackjobhotrodshop5075]

I had lightly ported heads, an aftermarket cam, extra boost and ethanol. It was close to 400hp with my estimate on airflow and fuel

[@mysnackr]

Wow that's seriously badass for a fbody v6. Thanks for sharing your work!@@hackjobhotrodshop5075

[@silverboltss2981]

because you don't just add a blower and not tune it. It also really depends on what pulley size hes running. On a 3.5 pulley I was able to gap a Transam on a quarter. Couple that with an increase in timing on E85 and your looking at close to or OVER 400 torque to the wheels, especially on a top swap setup.

[@terrencehall7264]

​@hackjobhotrodshop5075 gnite sir. As for me, I would use the l36 block and transfer crank,rods, pistons and regap them, install hi-po camshaft, leave the l36 heads and all the good stuff and turbocharge and intercool the engine. 450-600hp would very easily be within reach. What do you think 🤔.

[@ItsDaJax]

​@@terrencehall7264Is that another v6?

[@lifeishard1211]

I put an M90 gen 5 on my 6.0 LQ4 in my 1982 S-10. I'm still having belt slip issues.

[@kellybrown1860]

Holy Shit you must love a challenge and tinkering it is cool

[@hackjobhotrodshop5075]

Yes, that's basically me in a nutshell haha

[@MNPontiac]

where did you cut the blower? im in the process of doing this swap and im wondering where to cut the blower

[@hackjobhotrodshop5075]

Right behind the bypass valve at about a 20 degree angle. There's some 15yr old topics on forums when I built it that show, you can search 'l67 fbird'

[@bren4411]

do you think this would also work in a 93-95 firebird v6 f body?

[@leannpetersfreeman8039]

It’s a 2.8 l v6 s-10 bell housing bolt pattern?

[@CodyHill-x8w]

Will the nv1500 from a 4 cylinder s10 bolt up to the 3800

[@terrencehall7264]

Gday sir, you have a starter on the bench but you never mentioned anything about the location or relocation of the starter. The starter on the fwd engine is not on the same side as the rwd. How did you manage that?

[@hackjobhotrodshop5075]

Starter is on the same side of the block between front and rear wheel drive. The blocks are identical regardless of front, rear drive or NA or supercharged

[@terrencehall7264]

@@hackjobhotrodshop5075 are you serious? I've never seen a gm fwd engine with the starter located in the same side as a gm rwd engine. How you manage that?

[@terrencehall7264]

@@hackjobhotrodshop5075 i have a 3400 gm fwd v6 and a 3.4 Camaro V6 and both starters are on opposite sides so please prove me wrong.

[@hackjobhotrodshop5075]

@@terrencehall7264 this is a 3800, not sure if this applies to 60 degree GM v6 but I absolutely took a 3800 out of a gtp and put it in a firebird.

[@terrencehall7264]

@@hackjobhotrodshop5075 i have a l36 from a Monte Carlo SS and the starter is on the opposite side of the l36 that comes in the Camaro. The reason being that the fwd transmission is on the left side of the engine when you stand facing the front of the l36 engine, meaning the timing chain cover, waterpump, alternator etc. on the rwd l36 engine the starter is on the right side of the engine. But you may have an engine that has provisions for a starter on both sides of the l36 block. I don't know of any such provisions,. But i am aware of starter relocation kits for 3.4 Camaro engine to Pontiac fiero cars.

[@JC-lk3oy]

Were you on Fullthrottlev6 back in the day? I seem to remember this project on there back then.

[@hackjobhotrodshop5075]

Yeah I seem to recall being on there

[@arseniosantiago7879]

Have you ever got the engine in the vehicle?

[@hackjobhotrodshop5075]

Yup, drove it this summer and fall.

[@DavidPontello-os7is]

Great information brother but the coil pack is on the driver side of the Firebirds and not the passenger you were mistaken about that. I’ve got a 2000 Firebird.

[@lifeishard1211]

I thought my m90 swap was a pain in the ass, yours was worse. I bought an adapter plate to mount the m90 to a Holley lo ram manifold. I cut my m90 with a sawsall and it took more than an hour. I ported the m90 and had 1 90 degree 4 inch tube tig welded to it and had to have another 45 degree 4 inch tube welded with v band clamps so I could attach the throttle body. I had the silencer ports welded shut by the same guy that welded the 4 inch tube on the blower. I had to buy a custom 2.55 inch supercharger pulley from Nathan Herbst of smoothflow pulleys which had the ribs going to the edge because of a belt misalignment. I have a 7.4 inch ATI balancer and I think I'm spinning the blower at like 20,800 rpms. the hottest I've seen it get is 161 F. this is on my 6.0 LQ4.

[@hackjobhotrodshop5075]

How much boost do you manage? Even my m122 is too small for my 6.0, id think an m90 is almost nothing for boost?

[@lifeishard1211]

@@hackjobhotrodshop5075 I've seen it make about 4.5lbs. I live in Wyoming and the elevation is 7k feet so I've wanted to add boost for a while. I've been having belt slip so maybe it will make more boost when I have it fixed. I bought a belt wrap kit from nathan of smoothflow pulleys. I think that will fix the slip.

[@romeoboss8974]

Do you still have the supercharger ?

[@hackjobhotrodshop5075]

@@romeoboss8974 I do!

[@BarneyWarwick-od8ld]

Can you put a super charger on a 3.4 V6 mine is a 95 Camaro

[@Autonomia_para_Puerto_Rico]

The 3.4 have nothing to do with the 3800. 3.4 is a GM 60⁰ and the 3800 is a Buick 90⁰.

[@Starbuckin]

@@Autonomia_para_Puerto_RicoI I don’t think that answered the question. Can you supercharge or turbocharge a 3.4 V6 or not I’m not asking about 3800 dont care

[@Autonomia_para_Puerto_Rico]

@@Starbuckin then you can supercharge *ANY* car... But with the GM 3.4 you will need some custom cutting, welding and fabrication. If I have to choose with the GM V6 60⁰, I will go with a turbo sistem from a 3.1 I buy one for one of my Fieros but then I get old and all the parts are in my garage.

[@itzlegitzyt7012]

Will the 3800 bolt to the t-5/t-56 f body 5 speeds? I wanna swap a firebird

[@hackjobhotrodshop5075]

T5 3800 yes, t56 no, unless you buy a new bellhousing.

[@MNPontiac]

how did you tune the ecu? is the factory firebird ecu able to see boost?

[@hackjobhotrodshop5075]

Hptuners. The factory NA 3800 computer can't see boost like a gtp computer. There's no 2 bar upgrade like LS Stuff. However theres no way to force 3800 Stuff into speed density like LS stuff so it only ever looks at the maf anyway. Basically just stick L67 maf and spark in and size for injectors and it's darn close

[@swordsmenbacon9347]

What did u use for ur fuel management?

[@hackjobhotrodshop5075]

Stock GM ECU with HPT

[@malacefromthepalace5657]

Please can you tell me can I do this on a 2007 Buick Lucerne 3.8

[@hackjobhotrodshop5075]

There's a ton of topics online of L67 'top swaps' which is what you'd do

[@w41duvernay]

Did you need to go to a v8 rear axle?

[@hackjobhotrodshop5075]

Nope, this car came with a posi 3.42 and only thing I touched was an oil change

[@ravidear9191]

What engine mounts?

[@hackjobhotrodshop5075]

Stock 3800 f body

[@erickbernard8208]

I wanna do an l67 on twin 66s

[@w41duvernay]

NOTE 2:20 part of vid.