The same pistons off the engine you grab the top end from.

Basically, FWD 3400 v6 pistons.

RWD 3.4L pistons will not have the proper dish to them and you will have a compression ratio off the charts.

Russell has a 3.4L with 216 hp/250 tq at the flywheel...check it out.

http://www.fullthrottlev6.com/forums...ad.php?t=18192

 

a few brackets and spacers here and there. the only thing i had to "modify" on the 3400 stuff, was that i had to sand the 3400 plenum "numbers" off of the top...so that it fit under the cowl. other than that -- mostly just like you said, just slapped everything on.

there is ONE major thing that has to be done -- there is a little tab on the top of the timing cover. you have to cut it off. its got a hole in it for the heater hose attachment that comes out of the lower intake manifold...this gets moved so theres no need to have it - just remove it. if you look at the pics carefully you'll see where i took my dremel and cut it off.

 

Dually noted.

 

no sticky?

 

I was thinking of digging this thread up the...well, yesterday, in fact.

But, yes, I concur...why no sticky?

 

its a conspiracy i tell you....everyones against me

LOL...im still wondering why i have no sticky on this. it got a sticky on every other board i posted it on...

 

I just did a valve job on a 2000 Camaro V6 "3800 Series II". I am impressed with the power from this V6 (Also have a 3.8 V6 1997 Mustang which is much less impressive).

I noticed that the Series II heads are the "heart shaped" combustion chamber, similar to the Vortec heads on the 350 Chevy trucks starting in 1996. Prior heads on the 350 were "D shaped" combustion chambers. For anyone who hasn't sampled the two different motors (actually heads), there is a huge difference in performance from what would appear to be identical blocks, but with different heads.

Now I suppose there may be some changes with the intake manifolds with the non-Vortec and the Vortec heads, but I ask the question:

When did the V6 (F body application) switch over from the old style heads to the new heart-shaped heads.

 

Hello everyone, you may call me crazy but I took a 94 camaro 3.4L engine and drilled the block and stuffed it into my Fiero, then I put a T-25 Garret on it and was wondering where I can buy a rebuild kit for this engine, since I would like to redo the internals so it can handle ~15psi it's already pulling easy 12s but I want more without it killing over (daily driver) so I want to rebuild it this winter but have had no luck sourcing internal parts, also anyone know where I can pick up teflon skirted forged/hyper... pistons? I am also running Comp 1.52 roller rockers. TIA

Zefyr - Las Vegas
'86 GT 3.4L 5spd Turbo 1/4 times soon ~9psi
'85 SE R.I.P.
'85 Turbo 2.3L Ranger

 

I think the F-body 3.8L has always had those heads. At least as far as I know, the specs never changed on it since the 3.4L went by the wayside.

 

Maybe the "local" conspirators are waiting for a complete how-to list.

I know I am, since I'm going to have an empty engine bay soon and I want the car running as soon as I can decide which route I want to go with it....

 

I have seen people all over the internet talking about just swapping the heads and intake off of a late model 3400 with the roller rockers and just bolting them on to the rwd block in a camaro or firebird 3.4. But what is everyone using for pushrods since the 3400 uses a roller cam and roller rockers where the old 3.4 is flat tappet camshaft. Isn't there a diffrence in pushrod legth?

 

I have a question on this what about the ECU. Does it have to be re-flashed or something like that?

 

making a "how-to" guide when you are trying to plan/save up for a wedding is tricky. lots to do and finishing up a "this is how you modify your 3.4 to have aluminum heads really isnt at the top of my list rite now.

sorry guys but its gonna take a little longer. look on firebirdv6.com - lots of stuff on there if you search for "black34v6" - i have posts on there from the beginning.

anyway, as for the ecu (ecm/pcm) - you have to reprogram it. but there is nothing available that can actually reprogram the 3.4L ECM/PCM. thus i am trying to make a megasquirt ECM work for my car. ill keep everyone posted.

 

Jesus Russ! How did I miss this post for two years?!

Sorry for the huge delay! Stickied.

 

I have a 92 camaro that had a 3.1l. I took a rwd 3.4 and put the 3400 top end on it which was a mistake. You have to fly cut the pistons becouse the valves will hit. You also have to cut the tab that sticks up on top of the timming cover off for the lower intake to sit down. I took a a 350 distrubutor took the top plate off where the cap sits on and put the v6 on then cut the shaft and welded it to the 3400 oil pump drive so the distrubutor would sit up about 6" so it would clear the lower intake runners. You then have to make a u notch in the upper intake for the distrubutor cap to clear.And I also had to measure the push rods and have them custom made to use the rwd cam. ( I also done my 1st one using a foctory 3400 roller in order to use it you have to use the 3400 top timinr gear nad grind the block to bolt on the cam plate to keep it from moving back and forth, I drilled into and tapped the lifter vallies to bolt the roller lifter guides in, which I didn't get all of the metal out and the motor didn't last 5 miles before the bearings went out.) After this 2nd motor I ran a compression test on the cyclinders and the had between 275-290 psi (no thats not a mistype) I ran 110 octane racing fuel and the motor had unbelievable power but it also only lasted for about 2 hours before it blew a head gasket I'm currently pilling it out again but it will not have the rwd pistons in it.