H22 pistons

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E

egzivic

Junior Member
Have a JDM H22A with blown ring lands on #1 and #2 piston. Are JDM pistons the same as USDM pistons?
 
No, USDM is 10.2:1 CR, while JDM is 10.6:1 CR. Otherwise, they're interchangeable. If you're considering swapping pistons, check out the Type S pistons....11.1:1 CR, and will work with your stock rods.
 
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