I need advice for my 383 build
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
I need advice for my 383 build
Hey all,
Can you guys help to guide me a little here. I need to know what torque converter/rear end combo is going to work best for my application.
I've rebuilt a 700R4 with one of Probuilt's Master Street/Strip kits. This summer I'm going to be swapping a carbed 383 in place of my tired old 305 TBI and I plan to put the probuilt tranny behind it.
My goal for the motor is between 480-520HP at the flywheel. I've got two cars, so this one isn't necessarially going to be a daily driver, but it should be comfortable going as far as an hour or two away to a car shows or whatnot.
It's a 383, and it's probably going to have between a .500 and .600 lift mechanical roller cam. I've already ordered my AFR 195cc Heads, all forged bottom end, Hooker shorties and 3" exhaust. The only things that I still havent decided on are cam, gears, and stall.
Can anyone offer me any advice?
Can you guys help to guide me a little here. I need to know what torque converter/rear end combo is going to work best for my application.
I've rebuilt a 700R4 with one of Probuilt's Master Street/Strip kits. This summer I'm going to be swapping a carbed 383 in place of my tired old 305 TBI and I plan to put the probuilt tranny behind it.
My goal for the motor is between 480-520HP at the flywheel. I've got two cars, so this one isn't necessarially going to be a daily driver, but it should be comfortable going as far as an hour or two away to a car shows or whatnot.
It's a 383, and it's probably going to have between a .500 and .600 lift mechanical roller cam. I've already ordered my AFR 195cc Heads, all forged bottom end, Hooker shorties and 3" exhaust. The only things that I still havent decided on are cam, gears, and stall.
Can anyone offer me any advice?
Thread Starter
Senior Member

Joined: Jul 2003
Posts: 773
Likes: 2
From: Raleigh, NC
Car: 1988 Pontiac Firebird Trans Am Vert
Engine: 5.0L TPI
Transmission: 5-Speed
Axle/Gears: 3.08
...bump.
So no one has any advice here?
I forgot to mention that I am planning on a 12 bolt or 9" rear end with 3.73's.
So no one has any advice here?
I forgot to mention that I am planning on a 12 bolt or 9" rear end with 3.73's.
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