I have w2 heads on my 340 Duster & just found out one has 2 cracks in it.. I found a set on e-bay but the casting #'s are different than mine. my # is 3870810 his are 3577634 I called the mopar tec line they never seen this #. and suggested this site anybody know if these are the same as my heads? the pics. look like mine....
Thanks
Mike