Engine rebuild question
Reply #15 –
Honestly, for that kind of power, you just need a good 3 angle valve job and have the head surfaced flat. Having hardened exhaust seats put in while the head is off is a good idea.
Personally, if I have to pull a head off and have it redone, I'm opening the exhaust port up to 1.375" dia. on the exit side, only going into the port 1", hand blending the enlarged port into the bowl, work the short turn radius in the intake and exhaust ports, smooth the chambers and intake ports.
Topic: Engine rebuild question (Read 1430 times)
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