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Discussion Starter · #1 ·
Building a 496,with a zero decked block and 119cc heads,what cc piston and what size gasket would I need to achieve 10:1 compression or up to 10.2:1 ?
Would 10.2:1 be ok with solid roller and 94 octane on the street ?
 

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The most common 496 piston is the small dome 18cc's
With a .039 gasket it should give you about 10:1.
 
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