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Header tube size?

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Old

Jan 4, 2015 | 07:49 PM

#1

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Joined: Feb 2011

Posts: 139

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Car: 1989 Iroc-Z 350

Header tube size?

Heads on my stock l98 seem to be 1 1/2 inches (could be wrong). Can I put
1 5/8 inch headers on it?

Old

Jan 8, 2015 | 12:10 PM

#2

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Joined: Nov 2014

Posts: 258

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From: Mose Lake

Car: 86 Z28 T-Top

Engine: Vortec 350

Transmission: 700R4

Axle/Gears: I think 3.73 open dif

Re: Header tube size?

I would run them if it was me over the 1.5" but I cant tell you if they will make more power or not. If you did loose any power it would be on the bottom end and would more than likely be made up for in the top end.

Old

Jan 8, 2015 | 12:10 PM

#3

Member

Joined: Nov 2014

Posts: 258

Likes: 0

From: Mose Lake

Car: 86 Z28 T-Top

Engine: Vortec 350

Transmission: 700R4

Axle/Gears: I think 3.73 open dif

Re: Header tube size?

I have only replaced manifolds with headers and you always make power doing that. I have never replaced headers for other headers.

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