4.8/5.3l head valve sizes?
01-24-2003, 03:50 PM
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4.8/5.3l head valve sizes? What size valves would you guys say will work best and will machining be required? Will the seats need to be machined or replaced? I have a set of 4.8's that I want to p&p and mill .015, with a tr230, intake and headers.
