i went to lathe wala to know about boring of my existing 180 classic with the p200's piston, he said it can be done if both pistons shares same pin that connects crank
but he said that p200's valve cannot be installed in 180 classic heads
and i heard it that boring to higher cc wont give performance unless camshaft and valve is changed to a good one.
so please can u advice me on this mod
is it true that bigger valve and higher cam cant be installed in classic heads



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