[440raceman]

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

 

[birtchy13]

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.