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LS3 Felpro Head Gaskets

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Old Sep 23, 2013 | 10:10 PM
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Default LS3 Felpro Head Gaskets
I have seen people mention that Felpro sells a head gasket that is .04 compressed and fits the LS3. I have looked on Felpro's site and searched here but can't find any information on them. Does anybody have a part number or link to the gaskets? Thank you I really appreciate any help!
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Old Sep 24, 2013 | 02:52 AM
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Default Fel Pro MLS
http://www.fme-cat.com/digipubZ/Felp...kets/#?page=16

What you want are:

1161 L-041
1161 R-041

These are left and right 4.100" bore .041" thick

Steve



Originally Posted by mklaus1
I have seen people mention that Felpro sells a head gasket that is .04 compressed and fits the LS3. I have looked on Felpro's site and searched here but can't find any information on them. Does anybody have a part number or link to the gaskets? Thank you I really appreciate any help!
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Old Sep 24, 2013 | 08:17 AM
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Default
Originally Posted by Steve - Race Eng
http://www.fme-cat.com/digipubZ/Felp...kets/#?page=16

What you want are:

1161 L-041
1161 R-041

These are left and right 4.100" bore .041" thick

Steve
These are what i would want on my LS2 with LS3 heads? The bore just seems a little large, isn't the stock LS3 bore 4.065? I know I need larger than the LS2s 4.0 bore. Just want to make sure before I buy them. Thank you very much for your help!
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Old Sep 24, 2013 | 11:25 AM
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Default Gasket bore
Gaskets are made about forty thou over normally to allow one to bore the block thirty if necessary for repair or rebuild.

That's the only gasket that will work that Fel Pro makes regardless. The only alternative is to go with a Cometic gasket.

Steve

Originally Posted by mklaus1
These are what i would want on my LS2 with LS3 heads? The bore just seems a little large, isn't the stock LS3 bore 4.065? I know I need larger than the LS2s 4.0 bore. Just want to make sure before I buy them. Thank you very much for your help!
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Race Engine Development
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760-630-0450
web: www.raceenginedevelopment.com/
e-mail: race-engine-development@***.net
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Old Sep 24, 2013 | 02:51 PM
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Originally Posted by mklaus1
These are what i would want on my LS2 with LS3 heads? The bore just seems a little large, isn't the stock LS3 bore 4.065? I know I need larger than the LS2s 4.0 bore. Just want to make sure before I buy them. Thank you very much for your help!
Could go with Cometic 4.085, Texas Speed has them. That's also what I'm planning on going with on my LS2 with LS3 heads
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Old Sep 24, 2013 | 03:04 PM
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Default
Originally Posted by Steve - Race Eng
http://www.fme-cat.com/digipubZ/Felp...kets/#?page=16

What you want are:

1161 L-041
1161 R-041

These are left and right 4.100" bore .041" thick

Steve
I'm using those exact gaskets on a new 4.065 LSA block. No problems.
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