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New Edge Cobras
Seeking advice for a budget iron block build
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<blockquote data-quote="52merc" data-source="post: 17000087" data-attributes="member: 197"><p>You would need to go with a piston that is -1 cc or less. There are a few around but may be too costly for what you are trying to do. My calculations are for stock block deck height. Decking the block 0.020" will get you to 10.34:1. There was some variance on combustion chamber size from the factory so the only way to get a good CR number would be to volume check the heads. A combustion chamber volume of 51 cc along with the 0.020" decking would yield 10.5:1.</p></blockquote><p></p>
[QUOTE="52merc, post: 17000087, member: 197"] You would need to go with a piston that is -1 cc or less. There are a few around but may be too costly for what you are trying to do. My calculations are for stock block deck height. Decking the block 0.020" will get you to 10.34:1. There was some variance on combustion chamber size from the factory so the only way to get a good CR number would be to volume check the heads. A combustion chamber volume of 51 cc along with the 0.020" decking would yield 10.5:1. [/QUOTE]
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Seeking advice for a budget iron block build
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