hi, i am looking at a big bore kit for my 2003 pro x 440 but the casting nubers are different mine are 3021304 and the one i am looking at is 3022065 wondering if there will be a difference and if they will be interchangeable. thanks
if it helps the 3022065 cylinder is what is installed on my 1997 xcr 440. They apparently were the "updated" 1998 ones after a recall. From what i read in the xcr440 owners thread they arnt compatible but not sure about the differences.
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