'70 472 W/TH400 into '70 Malibu?
- I was given a '70 S de Ville w/472. What need to be done to shoehorn
it into a '70 Malibu? Is this an easy swap?
Are there mounts etc readily available?
Any help gratefully accepted.
- Phil, be sure and visit the MTS message board at
www.500cid.com/frames.html I feel your question will get quick
attention there. Most of these posts were at one time on that message
board and were copied here for archive storage. Your message will be
seen and answered here by some of the members, but I feel the
responce will be faster there. Mike Martin has a 70 Chevelle with a
BB Caddy in it and has been responding well to questions posted about
that type of application, and has a set of headers for sale that will
> I was given a '70 S de Ville w/472. What need to be done toshoehorn it into a '70 Malibu? Is this an easy swap?
> Are there mounts etc readily available?
> Any help gratefully accepted.
- big question was malibu already a Big block car, cause if not...you
will callaps your front springs and the motor mounts may not fit
right....and well bracket do not interchange either
- Phil, Although I did not put a BB Caddy into the type of body you
have, I did put one into a '72 fastback Mustang. Previously the
Mustang had a 302 and C4 Trans. The car was 2,990 pounds with AC. The
Caddy motor mounts are much closer to the front of the engine than
the Ford. We built adapter brackets to position the Caddy mounts
almost on top of the Ford mounting location, but had to leave it a
couple of inches forward to prevent having to cut the fire wall. The
engine was a few inches rearward of the Ford when instalation was
finished. The TH400 tranny was a long shaft from the '75 Deville that
the engine came from. I used a Camaro Z28 crossmember bolted to L
brackets that were welded to the Mustang's frame to hang the trans.
The drive shaft was only 38" long due to the BIG tranny. When the
instalation was complete, the Mustang's ride height was 2" taller in
front and I had to cut a coil out of the springs to get the car to
ride lower in the front. I thought that the Caddy would have been
much heavier than the 302 and had been looking for big block springs
prior to that, but could not find any. I found out later that the Big
Caddy is only 35 pounds heavier than a small Chevy. It is 85 pounds
lighter than a big Chevy. If you cut 35 pounds off the Caddy weight
by installing an aluminum intake, then you are running roughly the
same weight as the small block that is in the Malibu now, give or
take the weight differences of the accessories. I did not get to
drive the Mustang before it was taken apart to have the 12 point roll
cage put in----still an unfinished project.
Should you do your swap, you will find that you have the handling and
gas mileage of a small block car and greater torque than most BB
Chevys could ever hope to produce.