EDNY
Newbie
OK one of the members on my Chevy forum ID'd it.
His reply: I am pretty sure that is an adapter plate they use to use on old big Chevy Trucks or to put and old Clark 5 speed transmission behind an early SBC.
Link:
BTW: the 348/409 was Chevy's first big block
His reply: I am pretty sure that is an adapter plate they use to use on old big Chevy Trucks or to put and old Clark 5 speed transmission behind an early SBC.
Link:
BTW: the 348/409 was Chevy's first big block