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350 TPI Build - $1000 Budget

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Old 09-04-2016, 04:34 AM
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Car: 1987 IROC z
Engine: 350 TPI
Transmission: 700R
Axle/Gears: POSI 3:27s
350 TPI Build - $1000 Budget

Engine is my 1987 350 TPI all stock.
I have been searching the forums and lots of great info on the 350 Engines.
But I havent seen a post similair to asking my question.
If I set a $1000 budget what simple, reliable mods/rebuild can I do to the engine?
I will be getting Headers which is not part of this cost. I will try to pick up the parts over the Winter and do it in the Spring.
I am only thinking of doing this because I want to pull the engine to replace a back oil seal and clean the engine up a bit. So may as well do a little modding while the Engine is out.


EDIT: I put this in the wrong forum. Mods can delete it as I will post in the general section.

Last edited by Out-Cast; 09-04-2016 at 04:39 AM.
Old 09-08-2016, 09:03 PM
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Car: 1988 IROC-Z
Engine: L98 - full intake & exhaust boltons
Transmission: Bowtie 700r4, 2400 rpm stall
Axle/Gears: Borg-Warner 9bolt, 3.45 gears, posi
Re: 350 TPI Build - $1000 Budget

Stock the biggest gains would be make sure everything is tuned up and in good working order. Fresh oil, spark plugs, ignition system ect.

Performance wise exhaust and free intake mods would be great. Headers, y-pipe, cat-back exhaust. Quality headers (like those from Hooker) will really wake up your car.

For the intake, cut out all the baffles below the air box. Also cut out the plastic below where the air filters sit. You can run duct work from behind the fog lights and attach it to the bottom of the filter box to make a ram air set up.

Another mod would be to swap in an S10 torque converter. Stock stall for f-bodies is around 1500rpm-1600rpm. Stock S10 converter is around 2000rpm-2200rpm. Will help with off the line performance to keep the motor in the power band while you accelerate.
Old 09-08-2016, 09:07 PM
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Axle/Gears: Strange 12 bolt 3.42
Re: 350 TPI Build - $1000 Budget

Intake mods and torque converter biggest gains per dollar
Old 09-10-2016, 08:16 AM
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Car: 1987 IROC z
Engine: 350 TPI
Transmission: 700R
Axle/Gears: POSI 3:27s
Re: 350 TPI Build - $1000 Budget

Thanks guys. Those are the exact answers I was looking for. Simple mods without boring out the engine etc.




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