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b454rat · 12-22-2010, 10:49 PM

I've always heard those as clamshells, and they are the same between small block and big block. Car and trucks are different. Doesn't matter 2wd or 4wd, SBC or BBC.

I did many SB to BB swaps, never changed the rubber mounts.

12-22-2010, 10:49 PM	#6
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,469	Re: big block swap I've always heard those as clamshells, and they are the same between small block and big block. Car and trucks are different. Doesn't matter 2wd or 4wd, SBC or BBC. I did many SB to BB swaps, never changed the rubber mounts. __________________ 2000 GMC CCSB 454/4L80 6” lift SAS 1999 Chevy CCSB 454/NV4500 4” SAS 1999 GMC Yukon 350/4L60 6" SAS