C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Thin head gasket for an LT1

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Old Feb 25, 2002 | 10:35 AM
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Default Thin head gasket for an LT1

Anyone know where I can get thin head gaskets for an LT1? Looking for .029 compressed. I had read that I could use the Impala gasket, so I got some from Jeff Kopp. When I set them on the block there's a hole that opens up a water passage to the lifter valley, so these won't work. They are PN -10105117. Is there a different PN for what I need - 95 LT1?

Thanks guys
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Old Feb 25, 2002 | 07:57 PM
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Default Re: Thin head gasket for an LT1 (95Aqua)

Check with Felpro and GM.

Both sell of head gaskets for the LT1 with different compression heights.
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Old Feb 26, 2002 | 12:16 PM
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Default Re: Thin head gasket for an LT1 (95Aqua)

Ask Jeff to make sure he sent you the right ones. The Impala gaskets (I think) are .026 compressed and should work fine. What water jacket opening do they expose :confused:
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Old Feb 26, 2002 | 12:19 PM
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Default Re: Thin head gasket for an LT1 (Vette92)

Thanks guys, I called Jeff earlier and he straightened everything out. The 10105117 gasket is the thin gasket for a regular small block. The Impala gasket is 12553160 and it works great.
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Old Feb 27, 2002 | 12:34 AM
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Default Re: Thin head gasket for an LT1 (95Aqua)

Anyone know off hand what the bump in compression ends up being? Anyone tried it with an LT4 motor?

Jeff
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