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GCrites80s
post Aug 11 2017, 02:25 PM
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QUOTE (Steve91T @ Aug 10 2017, 08:11 PM) *
The Pacesetter guys wanted pictures of the gasket against their headers. So interesting thing is there are punch outs in the gaskets that line up perfectly with their flange. My LT1 uses the holes further out...the hooks.


Any idea what engine uses the inner holes?

https://flic.kr/p/WZuTuy



Maybe a pre-'86 Small Block?
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Steve91T
post Aug 11 2017, 06:43 PM
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Did you guys know there are inner and outer bolt holes in the LT1 cylinder head? I DIDNT!

Apparently the exhaust manifolds use the outer holes and the headers use the inners.

Whatever, back to work.
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trackbird
post Aug 11 2017, 10:11 PM
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QUOTE (Steve91T @ Aug 11 2017, 02:43 PM) *
Did you guys know there are inner and outer bolt holes in the LT1 cylinder head? I DIDNT!

Apparently the exhaust manifolds use the outer holes and the headers use the inners.

Whatever, back to work.


Off the top of my head, I think it was the 2nd gen F-body that caused the 7th bolt hole to be added to the heads, but I tried to look it up to verify if I remembered that correctly and I couldn't find it anywhere.
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Lo-Fi Version Time is now: 17th August 2017 - 09:32 PM