Lowering compression

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Lowering compression

Post  DanE on June 24th 2016, 9:02 pm

To lower the engine's compression, new pistons or go to D3 heads.
Probably should go for new pistons, that way you will have a fresh cylinder bore and new rings.

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Re: Lowering compression

Post  supervel45 on June 24th 2016, 10:50 pm

You can't win. Some of the latter model heads have hardened seats at least. The C8's with big valves and hardened exhaust seats would be nice though. Either way or both, just depends what you have and what you want to do with it and spend.

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