Building a 300HP N/A GM 3400 v6! Part 1 

So excited for this build! Its coming up to 6 years since I had that strip cam in the old 3500. Thanks for all your help and support, Scott!

I have a 1993 olds with the 3.1 multiport, i upgraded the fuel pump, injectors, and did some light polish and porting on the heads, and had the intake extruded honed to clean up casting flash on the inside. Made a big difference in performance. Nrxt is a holley efi system so i can set a base tune. I was a driveability tech at a gm dealership in the 80s and 90s when this engine came out, and i fell in love with it

Great video! I’m really looking forward to the next one. Makes me want to do some upgrades on my 3400 z24!

Thank you for sharing all this great information. Hopefully someday soon I'll use some of it.

Thanks for giving some love to the GM 60° V6 pushrod family. I've been messing around with an LA1 to LX9 swap...almost have it done. Future option to get a bigger throttle body, maybe a tune. Will you use the variable intake runner, or VVT? Or will this be all cam and heads?

I have an Oldsmobile Alero 3.4, I looked high and low on all forums and videos available on the topic but no one has a sure list of upgrades available to get the HP from stock, up to 250-300 HP. Besides the basic upgrades (ported heads, CAI, tune, turbo or supercharger, exhaust, what else can I do to get more power and efficiency out of the LA1 engine ? I'm currently in the middle of the process of swapping the old motor and trans out and putting a new one in and I want as many performance parts on there as I can that will have the 3400 running at its peak. My uncles are mechanics and they told me the 3400 isn't a weak motor. I'm hoping someone can actually prove them right and give me the feedback I need to make the ultimate sleeper

By the way, I just got done with a LA1 to LX9 swap in my 05 Rendezvous...been running it around for a couple days now. Could not be happier...it fired up within 2 seconds on the starter, like it wanted to run. Now I'm thinking about somehow using the LZ9, getting some of that 3.9 liter goodness instead of a 3.4 setup on a van...but no VVT, no variable intake...just more displacement.

Really don't think it's worth it, but go for it, sure it be fun to drive, I'm thinking of just getting the torque camshaft for my 3400 just to give a little extra but that's about it. These roads have been traveled down many times before and wot Tech is miniscule these days they practically have nothing anymore they used to have ported heads ported upper plenums full engine builds for sale. If I personally were to look deep into this I'll be looking how to incorporate or drop in the 3.6 VVT.

Using a GM / Camaro RWD 3.4 for a Locost build, but already have the 2005 GM 3500 LX9 top end ready to install... WOT still a thing? GREAT!

Really interesting to see how this will go. Im rebuilding a 3.4 camaro V6 with 3.1 (gen 2 heads) and 3400 intake. Thinking I might get 220-230 out of it, well anything over 200 would be nice. What camshaft do you think youll go with? What kind of rpm are you aiming for?

Ready to follow this one!. That's a high number for an old v6 like that! Interesting going off the 1/8. The calculators I was trying to use were only putting me at like 210-220 at most on the 7/8 psi lol it'd be nice to sit right around 300 without having to go past 15 psi!! Look forward to what's next!

Now time to drop one of these modes 3400 in a Venture or Montana

turbo 455!!!! the people demand it!!!!! That's me... im the people.

Looking good!

Any updates on this, looking to build my own N/A screamer for my Fiero.

My 95 camaro has a 3.4 sfi in it I heard it doesn't take to added power to well

Yeah I got somebody building me a 3500 with + 300hp but it's been just over 3 years... too good to be true

Since its an iron block how much could we bore over the cylinders? Are there any performance aftermarket parts out there? Im new to these small 60 degree v6s

Where do you find rebuilding specs for the 3400

I have a 1987 Cavalier RS soft top, I was see where to start at swapping the 2.8 with something fun like 250-300 HP range, where do I start ? I know nothing 😅 just a old ass car 😂

Hey is there anything that I can do to get more power out of my 2005 Buick Century 3100?

Sick!!!🔥🔥

How amazing bro ! And by time somome reply’s to comments bro I been trying to built my 3.4 05 impala how can I get in better contact with you so you can lead me the right way with what should be done

Do u build the harmonic adapter for the ignition system for the 3.5 lx9

Back cut the valves on the heads too

I work on cars and such but im new to modifying cars. I have a 3.4 Alero i was wondering if i can add a different header with more valves ???

What the best cam to put in a 93 camaro 3400 v6 with out changeing a lot just for street car to have a little fun with

Do u have a way to chat threw email I'm gonna help a friend mod his 04 monte Carlo 3400 and is the manifolds and plenum swap a good choice

You seem like the guy to ask. I eliminate all wiring and only use coils and crank sensor, does the timing still advance? And can you tell me what distributor I can use that has a vacuum advance?

That's a little unrealistic NA. The highest horse power na 3800 build was 247hp at the wheels, and that was an all out sponsored build. I mean maybe at the crank? If that's what you're looking for. That would still translate to about 260 at the wheels

i have 3.4 and looking to swap top end 3.5 , The lower intake are same 3.4 and 3.5? Or need both intake from 3.5? And need 3.5 injector to run that ? Or 3.4 thankss🤞

what did you mod the pcm with? do you have any bin files?

Hi... i have a cavalier z24 V6 3400

where’d you get all the parts to do this

Any updates on this build??

How is this motor on gas

Is that a chevy 2.8L v6

How soon we will see part2

Not enough cam for your goal.

What ever happened to this build?

Any update on the build?