The 1947 - Present Chevrolet & GMC Truck Message Board Network - Anyone running a SM 420 with a big block?

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billd5string

04-27-2013 09:49 PM

Anyone running a SM 420 with a big block?

Is anyone running a SM420 with a big block? I'm in the process of swapping in a 75 C20 crossmember into my 65 C20. I was planning on using the 75 motor mount brackets and associated motor mounts, but that will locate the motor a couple inches too far forward.

Has anyone else done this?

Thanks for your help!

1963c-10

04-27-2013 10:13 PM

Re: Anyone running a SM 420 with a big block?

ive seen a few 366 big blocks run with them
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