If you are going to keep the original style bellhousing and the crossmember it is bolted to, then the easiest motor mount brackets to use are the 230/250 and small block brackets that came in the '63-'66 trucks. But with those, the valve cover to firewall clearance is very close if not interfering. The '68-'71 big block brackets will bolt in, but you will have to move the bellhousing crossmember forward. If it were me, I would remove the bellhousing crossmember, change to a '73 and up aluminum bellhousing for the 168 tooth flywheel, and install a '66-'87 trans crossmember at the rear of the trans. In doing this you could also switch to the better '73+ style motor mounts, with the '73-'87 C20 frame brackets. I assume you know you will need a flywheel specifically for a 454, right?
Quote:
Originally Posted by nutsfor59
hi,thanks for the replies !!,i was wondering because it's sure tight in there,i put a muncie 4 spd in and it bolted ok,i have a 454 in the truck,why just because it was there and available i guess !!,has anyone put a big block in a early 60's chevy truck ??? and what did the use for motor mounts/perhes ??,thanks
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