Anyone have a 4 angle valve job?
Stock is 3 angle correct? Someone worked on my head to 4 angle valve seats and now my compression went from 230psi to 180psi. Im now consuming oil.
Can a 3 angle valve seat be recut on my head or is it too late? Should the head be shaved or what to bring back higher #'s??????
Can a 3 angle valve seat be recut on my head or is it too late? Should the head be shaved or what to bring back higher #'s??????
I run a 4 angle valve job on my DSM's, (intake), and a 3 angle on the exhaust side... no problems. My R might be different, but haven't gotten around to taking the head off and doing the work yet.
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unknown0001
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