ZR1 Head Gaskets for Boost
they have a larger diameter head bolt. so i would want to check and see if the dowels in the block are the same size. if not it wont sit exactly where they should. and the bore is 4.06, the stroke is the same at 3.62.
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l92/ls3 head gaskets are 4.085 .051 compressed
zr1 head gaskets is probably around same dimesions as l92/ls3
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Thread Starter
TECH Apprentice
Joined: Nov 2005
Posts: 304
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From: Newmarket, Ontario
http://www.corvettefever.com/techart.../photo_62.html
ZR1 info...
The engine block is constucted of cast aluminum and has the six-bolt main bearing caps common to all LS-x series engines. Additionally, the block has enlarged vent windows between the second and third bulkheads for better bay to bay breathing. During the finish bore honing process, a deck plate is installed to simulate the block distortions when the cylinder heads are secured. The use of the deck plate ensures a higher degree of accuracy and promotes piston ring fit and cylinder head sealing. Sealing the cylinder heads to the block is a stronger four layer head gasket
If the standard 5 layer was sufficient why would GM develop a new gasket, it just seems that this one should be better, or GM would just release a modified bore version of the 5 layer. Just a thought...
ZR1 info...
The engine block is constucted of cast aluminum and has the six-bolt main bearing caps common to all LS-x series engines. Additionally, the block has enlarged vent windows between the second and third bulkheads for better bay to bay breathing. During the finish bore honing process, a deck plate is installed to simulate the block distortions when the cylinder heads are secured. The use of the deck plate ensures a higher degree of accuracy and promotes piston ring fit and cylinder head sealing. Sealing the cylinder heads to the block is a stronger four layer head gasket
If the standard 5 layer was sufficient why would GM develop a new gasket, it just seems that this one should be better, or GM would just release a modified bore version of the 5 layer. Just a thought...
