I 'THINK' (not 100% positive) that the late 'corporate' or B-O-P TH350's and TH400's will bolt up to those early v8's just fine.

(corporate or "B-O-P" meaning Buick/Olds/Pontiac. These transmissions were the same inside as a chevy TH350 or TH400 but used different bolt pattern to bolt up to the motors.

I know for a fact that the mid 60's olds 330 and 425 v8s will bolt up to them, so I'm pretty sure the bolt pattern was the same on the early 60's motors too.

A TH400 would be ideal because they are can be built super stout, and they are very cheap to build and get parts for.

You might want to check out http://www.realoldspower.com there are a lot of hard core Oldsmobile racers on there who can tell you 100% weather you can use one of the later trannys or not.

I don't know if you realize it or not, but all of the oldsmobile v8's going back into the 50's 'LOOK' basically the same, so unless you really want to keep a numbers matching engine, you could build up a sweet 455 and it would appear to be stock in the engine bay.

Just a thought... Of course if you have the #s match origonal engine, by all means, build that baby up!


I love Oldsmobiles... i really gotta get me another one.