by ThumpStreet » Wed Aug 17, 2016 8:18 am
Good day to All.Can any of you salty XL guys out there educate me on the differences between the XLCH pistons years 1969 to 1970.Example:22257-58A year 1969 XLCH .050 O.S.vs.22257-70 1970 XLCH .050 O.S. Weren't the bore sizes in 69 to 70 the same starting point of 3.00" ? Were there dome changes?Is either application an acceptable replacement part?