I have a strange question and opportunity.
I have a 1972 chevelle convert. With a blown 350 non original motor.
I have another 350 to drop in but I want something a little different and a little more powerful.
So here is what I have....
Rebuilt turbo 350 trans in my car already and a rebuilt 1965 Caddy 429...(the opportunity) Do these fit together?
I have been searching for the trans the 65 caddy came with with no luck
I can have the whole drivetrain If I want..eng, trans and rear end.
I am sure I can get it to go in but don't really want to waste my trans I just spent all that money on.

Let me know
Thanks

The caddy should have a TH-375/400 (3L80) transmission in it. So I'd assume the bell housing bolts would line up and everything just work. I would be cautious about all of the other work required to shoe-horn that motor into your car. I think the money you put into that could go towards building a 454motor with better power.

Even the distributor is on the wrong end of the motor. ;)

I'm certainly not an expert on this, but I have read several articles about the Caddy engine swap. I believe you will need some kind of bellhousing adapter though. I was actually considering this swap a long time ago, but I think the adaper was the reason why I didn't pursue it. This was in the 80's and 90's, so I don't remember all the details.

I believe the swap was originally intended to get a lot of cubes by using a cheap standard production engine in a relatively small envelope (if I remember correctly, those big cube Caddy engines are smaller than a Chevy BB). There are hi-perf parts on the market, but you're probably better off with a Chevy BB if you want more hp.

It would make a nice conversation piece though... :)

I have a strange question and opportunity.
I have a 1972 chevelle convert. With a blown 350 non original motor.
I have another 350 to drop in but I want something a little different and a little more powerful.
....a rebuilt 1965 Caddy 429...(the opportunity) Do these fit together?
Let me know
Thanks


If you ever want to sell it, swaps like this are not appealing. Use the 350/350 - much better resale value.

Good thinking....about the resale value.
I am probably going with the 350, maybe build to a 383
Thanks for the input.