SB Mopar Cylinder Head

S/ST 3040 · 04-20-2017, 07:21 PM

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.

STK4340 · 04-25-2017, 02:23 PM

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

S/ST 3040 · 04-25-2017, 09:31 PM

Quote:

Originally Posted by STK4340

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

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

Thanks

04-20-2017, 07:21 PM	#1
S/ST 3040 Junior Member Join Date: Jan 2015 Posts: 41 Likes: 4 Liked 1 Time in 1 Post	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.

04-25-2017, 02:23 PM	#2
STK4340 Junior Member Join Date: Oct 2004 Location: Vacherie, LA Posts: 63 Likes: 0 Liked 0 Times in 0 Posts	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