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5.3 block bored to 5.7 with LS6 heads, did I get the correct head gaskets?

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Old 07-08-2013, 08:39 PM
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Default 5.3 block bored to 5.7 with LS6 heads, did I get the correct head gaskets?

I've got Chevy Performance head gaskets, part # 12589226

It's for a Thompson Motorsports LS1, 5.3 block bored to 5.7 and I'm using 243 heads. Everything looks kosher, no holes blocked, etc. Just want to make sure, this is my first time putting heads on a car engine. Block is 2004+ aluminum, all head bolts are the same size.

Thx
Old 07-08-2013, 08:51 PM
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Yea they should work.. Just look at the bore size on the package..

Should match up to your cylinder bore of 3.898-3.910 area
Old 07-08-2013, 10:26 PM
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MLS gasket used on LS1. They were also used on the L33 which is what your block is.

Ron



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