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Old 07-18-2010   #1
F-Body Member
Join Date: Feb 2002
Location: Kentucky
Posts: 552

header size

Is a 1 3/4 header tube to big for my stock engine with no cat, or should I look for 1/58 shorties? I have been looking at dyno Dons and see he sells 1 3/4.
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Old 07-19-2010   #2
"The only thing to fear is.............fear itself"
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Join Date: Jun 2003
Location: In front of you....
Posts: 4,742

GTA Year: 1991
GTA Engine: 350 TPI Automatic
Re: header size

Imho, no, not at all.

Cliff Jones
1991 GTA Trans Am
w/305,231 miles
on the original motor!!!!
Time of Death on motor, 4:07pm on 05/29/2010.
Best et: 13.959@97.05mph
Best mph: 98.3
Best 60' : 1.875 on BFG Comp TA's w/ 32 lbs of air in them
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Old 07-19-2010   #3
"Firehawk" GTA owner
Join Date: Oct 2001
Location: Brooklyn, NYC
Posts: 1,656

Re: header size

I run Dyno Dons on my stock heads/cam 350. They made a very good improvement and the extra flow will be available when I swap out my heads and cam.

His headers are the best for our cars. I have ZERO fitment issues and spark plugs fit really well.

1991 Trans Am GTA... Hopefully again
Fred91GTA is offline   Reply With Quote

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