Cam???
Supreme Member

Joined: Aug 2004
Posts: 1,214
Likes: 3
From: Norwich, CT
Car: '89 Trans AM/'88 GTA
Engine: (2) Tuned Port L98's
Originally Posted by juggaloblazed
What major mods do I have to do if I wanted to change my cam? Would it be just the prom??
No, not entirely ..
Depending on the lift/duration of the cam it can be
operational with the stock prom ..sometimes..
Most of the time, when runnin' a performance after-market
cam.. it needs to be dialed-in if you want peak performance
from your engine, but not all the time ..
When deciding on what cam to run, you kinda wanna consider
what heads your running with it, because the heads play a vital
role on how the cam responds.
What cam do you have in mind? What specs?
Senior Member
Joined: Jan 2006
Posts: 793
Likes: 0
From: Michigan
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
Get ready to fork out some $$$
I'm in the process of doing this now.
$280.00 for a roller cam
$75.00 timing chain
$35.00 oil pan gasket
$100.00 new springs
$20.00 new valve seals
I bought new runners, intake, and plenum.
So I ended up sticking over $500.00 more into it for a cam swap.
I went with a TPI friendly cam
Lift: Intake @Cam 301 @Valve 452 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 310 @Valve 465
Rocker Arm Ratio 1.50
Crane came # 104224
I'm in the process of doing this now.
$280.00 for a roller cam
$75.00 timing chain
$35.00 oil pan gasket
$100.00 new springs
$20.00 new valve seals
I bought new runners, intake, and plenum.
So I ended up sticking over $500.00 more into it for a cam swap.
I went with a TPI friendly cam
Lift: Intake @Cam 301 @Valve 452 All Lifts are based
on zero lash and theoretical rocker arm ratios.
Exhaust @ Cam 310 @Valve 465
Rocker Arm Ratio 1.50
Crane came # 104224
Thread Starter
Junior Member
Joined: Jun 2006
Posts: 30
Likes: 0
Car: 89 TA
Engine: 305 TPI
Transmission: T-5
I dunno I want just a bit better than stock nothing major i'm lookin into the cam but no quite sure what to look for.I was either going to run the stock heads but get them machined or get a set of vortek heads I dunno so any help
Senior Member
Joined: Jan 2006
Posts: 793
Likes: 0
From: Michigan
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
You dont need to do work on the heads if you go with a mild cam. Look at mine. All I did was change the Springs and valve seals. I kept my stock lifters and Spring keepers. All I can say is the cam I have sounds bad ***!!
Senior Member
Joined: Jan 2006
Posts: 793
Likes: 0
From: Michigan
Car: 1987 Trans Am
Engine: 5.0L TPI
Transmission: 700R4
Axle/Gears: Richmond 3.73
I'll let you know in a day or so I hope. I had it running, but it wasnt running good. I guess I pinched some wires when I lifted the motor to change the oil pan gasket. So the fuel injectors are messed up. When I had it going it sounded pretty mean......for a 305 I guess, LOL.
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