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Old 09-25-2018, 09:34 AM
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H22A con rods in M103/M104

Has anyone put the Honda H22A's con rods to M103 or M104 to lower the compression ratio? (for turbo or supercharge purpose) Does it need any modifications?
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Old 09-25-2018, 09:45 AM
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why not custom headgasket? m104 rods can hold 600hp.
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Old 09-25-2018, 10:32 PM
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From what I recall, the H22 type rods were used when a longer stroke crank is installed with stock pistons. I'm thinking that anyone that has done this uses aftermarket H22 rods not stock.

I pulled a set of H22 rods out of what appeared to be a running engine, one is bent and there is no sign why it is bent. The engine was in a plain non modified / non turbo Mom and Pop car.
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Old 10-16-2018, 02:48 PM
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@OldSinner111 about how much does a custom gasket run? I will be building a M104 for boost at some point (likely a few years away).
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