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Old 01-06-2010, 11:19 PM   #1
Big Port Jimmy 6
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Motor mounts

Are the clam shells that fit on the block the same for a small and big block? Jay
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Old 01-07-2010, 07:27 PM   #2
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Re: Motor mounts

BBC guys?
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Old 01-07-2010, 08:40 PM   #3
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Re: Motor mounts

Yes!.......A least they were for my swap.
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Old 01-10-2010, 07:36 PM   #4
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Re: Motor mounts

Yes. Pulled the 400 sbc out of my '77 and dropped a '75 bbc in. Clamshells bolted up and fit fine.
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Old 01-10-2010, 10:14 PM   #5
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Re: Motor mounts

2wd and 4 wd are different ....
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Old 01-10-2010, 11:17 PM   #6
b454rat
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Re: Motor mounts

2wd and 4wd have the same "clamshell" mounts. Old man had an 84 or something truck that was 2wd. 305 that barely ran, swapped in a 350 from an 81-82 4wd, and we didn't swap those mounts.

I've done 3 small block to big block swaps and never had to change anything.
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