new cam for my 5.7 tpi

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Aug 24, 2014 | 01:12 PM

claus290373

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Joined: Apr 2014

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From: Danmark

Car: Trans Am gta 5.7 1989

Engine: 350 tpi

Transmission: th700r4

Axle/Gears: BG 9 bolt

new cam for my 5.7 tpi

hey

I have to change my head gasket because of a leak and want to install a new cam at the same time...

I have hooker 2055 headers and full 3" exhaust with cat delete and air delete everything else is stock.
The car is a 89 5.7 tpi with 103000 miles.

But what will be a good cam ??? It has to work with the stock head.

Will this setup work...

http://www.jegs.com/i/Crane-Cams/271/104224/10002/-1
http://www.jegs.com/i/Crane-Cams/271/11308-1/10002/-1

And a adjustable fuel pressure regulator do i need more ???

Maybe a stupid questions but do i have Roller Lifters or flat tappet lifters ??

Aug 24, 2014 | 04:30 PM

aliceempire

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Posts: 2,108

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From: Milwaukee

Car: 92 Firebird, 77 Trans Am SE, 86 Z28

Engine: 5.7 HSR, T/A 6.6, empty

Transmission: T-5, TH350, T-5

Axle/Gears: 3.08 posi, 3.23 posi, 3.23

Re: new cam for my 5.7 tpi

On a stock TPI manifold you don't want to go too big. The cam you picked will work, but may be a little larger in duration than the stock computer may like. I'd suggest a tune regardless of what camshaft you pick. I run a http://www.compcams.com/Company/CC/c...?csid=194&sb=2 Comp 501 and its as big as you'd really want to go on a stock manifold. Otherwise a 500 http://www.compcams.com/Company/CC/c...?csid=193&sb=2 is a good choice too.
Also I'd suggest valve seals while the heads are off or even a rebuild. DO NOT replace those heads with 193 heads. Common rebuilds want to change TPI heads to those. Stick with stock 083 heads.