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Gargoyle · 03-15-2017, 09:06 PM

Will the SM-420 tranny bolt up to a Pontiac 389 or 400 block? This would be in a '65 GMC.

03-15-2017, 09:06 PM	#1
Gargoyle Registered User Join Date: Nov 2013 Location: Blacksburg, VA Posts: 289	SM-420/Pontiac engine Will the SM-420 tranny bolt up to a Pontiac 389 or 400 block? This would be in a '65 GMC.