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Identifying a ported and polished head
If the head is P & P'd then the intake and exhaust ports and the area
under the valve head would show some evidence of
grinding/cutting/polishing. If it's a cast finish inside the ports then
it's stock.
Dan
Bill Collins wrote:
>
> Last night I pulled the head from the JH engine in my '86. The PO told me that the head had been ported and polished, but it looks completely stock to me. Am I correct in assuming that a P&P head would be smooth in the area behind the intake valves (instead of the usual rough casting finish), or am I totally wrong about what P&P means?
>
> Bill
>
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