Factory exhaust size?
04-29-2008, 06:37 AM
#1
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Car: 89 Formula
Engine: 350
Transmission: TH 700R4
Axle/Gears: 3.27
Factory exhaust size?
What's the diameter of the stock intermediate pipe for an 89 350 TPI?
Any other specs would be helpful if you know
thanks
Any other specs would be helpful if you know
thanks
04-29-2008, 07:05 AM
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Factory exhaust size?
I think mine was 2 3/4" tail pipes 2 1/2
04-29-2008, 11:41 AM
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Car: 1988 Iroc-z28
Engine: 5.7 350
Transmission: 700R4
Axle/Gears: 2.77
Re: Factory exhaust size?
I have a 88 350 and i'm pretty sure it's a 2.5 Thats what I bought my cutout for anyway. If you make a template out of cardboard of a half circle with the diameter of 2.5 it's pretty easy to measure it.
Last edited by Avernus; 04-29-2008 at 01:53 PM.
04-30-2008, 05:19 AM
#5
Re: Factory exhaust size?
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