casting # 12556140 they look like '96+ heads but the casting # I've never seen before.
T TECHRF Member Aug 6, 2004 #1 casting # 12556140 they look like '96+ heads but the casting # I've never seen before.
T TECHRF Member Aug 7, 2004 #3 thanks . thats what I needed to know. is there a difference in them as compared to the 772?
0966Sy Code what? Aug 17, 2004 #4 I also have these heads, and was wondering if there was a difference between them and the 772's?
jwaller Evil Genius/SyTy Guru Aug 17, 2004 #5 pretty much all vortec's are the same. 772 just so happen to have been some of the first out of the box.
pretty much all vortec's are the same. 772 just so happen to have been some of the first out of the box.
