Ski933 I think it would have to be a 63 425 that was original Dynaflow motor because the Dynaflow crankshaft it different than the T400 crankshaft.
I think you have to use 364 l.h. exhaust manifold and 364 modified oilpan (longer stroke, crankshaft hits the oilpan) and modified oilpump pick-up. My 425 has been in `58 body and have these modifications.
The 425 i have currently has a turbo400 behind it. Will the 425 oil pan fit in car?i guess i could put the 364 crank in it . i bought the motor and found i opened a can of worms.
425 have center sump, I`m not sure, but I think you`ll need 364 rear sump oilpan. Does 364 crank fit to 425 block? If it fit, compression ratio falls too low (364 crank, rods, 425 pistons).
!NailHeadBuick E-mail Address(es): NailHeadBuick@yahoogroups.com Check with these guys. This is always a topic there.
