Do you use silly putty?
It wasn't needed in that gasser motor. It wasn't built no were near to how tight I build my open alky motors. Plus the valves were super light titanium, with white stripe springs.
Less lift, less duration, more piston to head clearance, and thicker head gasket.
This current open alky motor I'm building now only has .045" piston to head clearance. .486" valve lift, 260 duration @ .050" lift, and NO head gasket. And 15.85:1 static compression. WAY beyond that little gasser
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