A friend asked me ,about timing chains ..today...

Not all motors have the same cam to crank center line. Depending on the cam tunnel o crank bore placement this measurement will change. You can get different chains to fit you application perfect. Roll master seams to always keeps its size with out stretch. There is a difference between a roller chain and a true roller chain. if you can't spin the roller it is not a true roller they are junk.

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