Will these aluminum Percy's 66012 fit stock L98 heads good?
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Car: 88 IROC-Z
Engine: GEN 4 LY6 (going forged 408)
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Axle/Gears: 7.5" 3.42 (staying...)
Will these aluminum Percy's 66012 fit stock L98 heads good?
http://www.jegs.com/i/Percys/760/66012/10002/-1
Arn't the stock L98 ports "1-5/8"
These say "1.5"
These and the Mr. gasket set (which I looked up and down but could not find what port size they are) are the only 1s I can find. I don't want any over lap.
im just tired of blowing out 1-3/4 paper gaskets with my LTs...
My buddy keeps tell me to get the Percy's 1s.
Arn't the stock L98 ports "1-5/8"
These say "1.5"
These and the Mr. gasket set (which I looked up and down but could not find what port size they are) are the only 1s I can find. I don't want any over lap.
im just tired of blowing out 1-3/4 paper gaskets with my LTs...
My buddy keeps tell me to get the Percy's 1s.
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Re: Will these aluminum Percy's 66012 fit stock L98 heads good?
Ideally you should match the header port size.
66037 might be a better choice.
66037 might be a better choice.
Last edited by Johnny Blaze; Mar 10, 2014 at 06:00 AM.
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Re: Will these aluminum Percy's 66012 fit stock L98 heads good?
Fel-pro 1404 or 1405 with 1" long bolts would be my choice.
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Senior Member
Joined: Mar 2014
Posts: 571
Likes: 10
From: Indy
Car: 88 IROC-Z
Engine: GEN 4 LY6 (going forged 408)
Transmission: 60E (going RPM LEVEL 6 4L80E)
Axle/Gears: 7.5" 3.42 (staying...)
Re: Will these aluminum Percy's 66012 fit stock L98 heads good?
Already have (2) sets of header bots.
(locking and small head/ I use both at the same time...)
Why does the 66037 say "rectangle/square"?
---only post about aluminum header gaskets---
(locking and small head/ I use both at the same time...)
Why does the 66037 say "rectangle/square"?
---only post about aluminum header gaskets---
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