LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Impala head gaskets?

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Old

Jul 13, 2003 | 09:10 PM

#1

97Camaro007

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Joined: Apr 2002

Posts: 414

From: Lufkin, TX

Impala head gaskets?

I have heard that you can put impala head gaskets on your car and gain a little compression.....is this true? What is the part # thanks

Michael

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Old

Jul 13, 2003 | 09:20 PM

#2

QCKZ28

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Joined: Feb 2003

Posts: 1,853

From: Christiansburg, VA

yes true. stock is 0.049, impy is 0.029. the equavalent to having your heads shaved 0.020. gm part number is 12551488. you have to order 2.
jesse

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Old

Jul 13, 2003 | 09:26 PM

#3

97 RedSS

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Joined: Aug 2000

Posts: 1,071

From: Dallas,TX

For the lil you may gain with impy gaskets, I have had soo much luck with the felpros. Lots of guys on here use them and they are a proven performer..

Cody

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Old

Jul 13, 2003 | 10:05 PM

#4

I burn rice too

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Joined: Apr 2003

Posts: 302

From: Plumas Lakes CA

Fel-pros, I think they're .28 and better quality gasket. I had both oem and Fel-pro and went withthe Fel-pro, they just look like better quality.

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Old

Jul 13, 2003 | 10:20 PM

#5

QCKZ28

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Joined: Feb 2003

Posts: 1,853

From: Christiansburg, VA

felpro is actually 0.039 for the lt1

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