SB Mopar Cylinder Head
 

Are there any internal differences in these castings? Outwardly, they appear the same.

4448308 (88-91 OEM 360)
4772576 (Mopar Performance)

I have a single MP casting, that is completely butchered that I will continue to grind away at, looking
for thin spots. I am just wondering if I can expect the same internal structure from the 308.

Re: SB Mopar Cylinder Head
 

Same. I have multiple pairs of each still wrapped in cosmoline paper in their original Mopar boxes if that helps any. Ryan

Re: SB Mopar Cylinder Head
 

So if I ruin a head, I'll know who to call.:cool:
Thanks