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Originally Posted by CFM Focus
We are running low on the 8.2 pistons and will be ordering new pistons soon. I think we're going to order something closer to 9:1 since that will suit the majority of customers. You could also go with 10.2 and run a thicker head gasket if you're goal is around 300whp. Depends on how much power you're going for. Anything over 350+ I would recommend going somewhere in the 8.5:1 range for the added safety. Especially if you're going to try and push limits on 93 octane.
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I'm looking to make about 220-240 hp all told, so I'd think that even on 93 octane a 9:1 CR would be good to go.
If you can get some 9:1 CR pistons (JE?), you can consider a shortblock sold right now. Let me know.