On Jul 20, 9:04*am, " wrote:
VW Engine Wear Factors

The exhaust valves are the weak link in any air cooled Otto Cycle
engine using poppet valves. *
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Is there a larger diam stem, Porsche, valve, spring, keeper,guide
assy that could
be placed in the VW head ???

Or even hot rod "kiddie" (after market) stuff ......

Reggie