Quote:
Originally posted by dvs_prelude
I thought you only need headwork if you raise your rev limiter. That's what I was told by my mechanic/tuner. Stephan Pap kept the stock valvtrain on his H22 for a while.
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You have to rebuild both the block and head in order to raise your rev limit the right way. You CAN run higher RPMs with just headwork, but I don't recommend it because too high of a risk of f'ing up your bottom end. because your crankshaft is not balanced for the increased RPMs
