how much will they help, if i put it on with Crane Roller Rocker,New Camsaft, and Value Springs, what kind of HP Increase should i expect.

------------------[*]191(3.1)V6 1992 Pontiac Firebird[*]K&N fiter with custom Ram air[*]bosch patinum spark plugs[*]Flowmaster Exhaust w/ 3" tips[*]Pioneer reciver[*]kenwood 4x6's[*]sony xplod 6x9's[*]1 kenwood 12" powered by a 300 watt jenson amp[*]-----------[*]Future Engine Mods[*] CCS Custom Computer Chip[*]Underdrive Pulleys[*]Free Flow Cat[*] Crane Camshaft,Roller Rockers, and Valve Springs[*]------------[*]Furture Body Interior Mods[*]4th Gen Trans AM Seats[*]4th Gen Trans AM Wing[*]Ram Air hood[*]1 1/2 Din Pioneer Reciver[*]Alpine 6 1/2 Componets[*]Infinity 6x9's[*]Alpine 120x4 V12 amp[*]1 JL Audio 12w6[*] Rockford 500a2 www.geocities.com/my_92firebird

 

do it and find out If i tell u an amount and its not it usually pisses people off so i learned not to say anything except go do it.

------------------
1989 Firebird
2.8 v6, t5 swapped in

Ram Hi-po clutch, Cold Air, 1.6 rockers (ready to install), Lakewood LCA's, Lakewood Lift bars, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil (Fireball in future) Accel 8.8 wires, MSD Ignition Module, 4th Gen Seats (not front yet)

" I'd rather run last in a full out race, than to NOT run at all ".

 

That's alot of effort.
Go get a 3.4 & put it in. Better results.
How strong is your engine now?
Hopping up an old block usually increases wear factor big time.

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA

 

only 65,000 miles on it, its pretty strong

------------------[*]191(3.1)V6 1992 Pontiac Firebird[*]K&N fiter with custom Ram air[*]bosch patinum spark plugs[*]Flowmaster Exhaust w/ 3" tips[*]Pioneer reciver[*]kenwood 4x6's[*]sony xplod 6x9's[*]1 kenwood 12" powered by a 300 watt jenson amp[*]-----------[*]Future Engine Mods[*] CCS Custom Computer Chip[*]Underdrive Pulleys[*]Free Flow Cat[*] Crane Camshaft,Roller Rockers, and Valve Springs[*]------------[*]Furture Body Interior Mods[*]4th Gen Trans AM Seats[*]4th Gen Trans AM Wing[*]Ram Air hood[*]1 1/2 Din Pioneer Reciver[*]Alpine 6 1/2 Componets[*]Infinity 6x9's[*]Alpine 120x4 V12 amp[*]1 JL Audio 12w6[*] Rockford 500a2 www.geocities.com/my_92firebird

 

only 65,000 miles on it, its pretty strong

------------------[*]191(3.1)V6 1992 Pontiac Firebird[*]K&N fiter with custom Ram air[*]bosch patinum spark plugs[*]Flowmaster Exhaust w/ 3" tips[*]Pioneer reciver[*]kenwood 4x6's[*]sony xplod 6x9's[*]1 kenwood 12" powered by a 300 watt jenson amp[*]-----------[*]Future Engine Mods[*] CCS Custom Computer Chip[*]Underdrive Pulleys[*]Free Flow Cat[*] Crane Camshaft,Roller Rockers, and Valve Springs[*]------------[*]Furture Body Interior Mods[*]4th Gen Trans AM Seats[*]4th Gen Trans AM Wing[*]Ram Air hood[*]1 1/2 Din Pioneer Reciver[*]Alpine 6 1/2 Componets[*]Infinity 6x9's[*]Alpine 120x4 V12 amp[*]1 JL Audio 12w6[*] Rockford 500a2 www.geocities.com/my_92firebird

 

Well with a cam it is hard to tell the final outcome..maybe 5-10 ponies the rocker arms...2-3 maybe...it just depends on how much better the 3.4 heads flow...

 

n/m

[This message has been edited by Joe_L (edited April 05, 2001).]

 

There is a guy on camaro Z28.com that had a comp cam, professionally ported 3.4 heads, and a modified LT1 plenum, and it all added 40 hp with 3.4 pacesetter headers.

 

No arguement there.
Honest, these heads are damn good as they are.
Really.
I just started porting and polishing the heads for my LT-1 I'm building for my 1967 Camaro (I'm using the 186 heads, same as for 1969 Z-28. Also doing a set for my Corvette, 487X heads.) Those heads have lots of crap in them, that's why you do port and polish old heads.
When I played with the swap, I kept the 2.8 fuelie heads. They are so many light years ahead of the old heads, not funny. Port and polish these 3.4 heads?
No
Power is made elsewhere. Like exhaust and intake, ignition. These V-6 are really very advanced engines, which is why they work so well, as is.
And you gotta agree with that, they really are great engines. Especially the Fuelie ones, no matter what size.
BUT only power for these engines comes from displacement.
That's why I did the 3.4 swap.

NOW if you were doing a 2.8 S-10 carb head swap to the 2.8 fuelie heads and 2.8 fuelie cam for same 2.8 engine, yep, that'll make power!
THERE IS A DIFFERENCE BETWEEN THE FUELIE & NON FUELIE HEADS! Fuelie is way better head flow.

------------------
Chat Soon,
KED85
Karl
1985 Firebird 2.8 to 3.4 swap project for Smog Happy LA, CA