C6 for 351 cleveland

Reply Subscribe

Thread Tools

Search this Thread

Apr 22, 2002 | 07:49 PM

canadianfordman

Thread Starter

Posting Guru

Joined: Dec 2000

Posts: 1,594

Likes: 0

From: Campbell River, BC Canada

C6 for 351 cleveland

I have a 351 cleveland and I want to bolt a C6 up to it. Is there a difference between small block C6's and big block C6's? I have a chance at a few but they were both previously bolted to big blocks. Thanks

Apr 23, 2002 | 10:21 AM

dinosaurfan

Cargo Master

Joined: Aug 2000

Posts: 2,931

Likes: 12

From: SW Michigan

C6 for 351 cleveland

CanadaMike, there are 3 differant cases that I have seen so far, first the FE case, the the 385 series case, and then the 6 cyl and small block. The internals are largely the same. I haven't seen a C6 behind a 351C in a factory application, but the local salvage yards here have lots of them behind 300 inline 6s, which would bolt to your 351C just fine. Look in full size 2wd trucks and vans. DF

Apr 23, 2002 | 11:48 AM

Fordknut

Senior User

Joined: Apr 2002

Posts: 116

Likes: 0

From: Upstate NY

C6 for 351 cleveland

I think all the 4Bbl Clevelands with ATs had C-6s mounted to them. I have a C-6 that was factory mated to a 2Bbl Cleveland in a Cougar; '72, I think. Small block C6s are somewhat scarce, but not what I'd call rare. Check out the local wrecking yards and attend a few swap meets; you should be able to find one. I'd sell mine, but I wouldn't want to go thru the hassle of shipping it.

May 9, 2002 | 02:06 PM

DavidB

Elder User

Joined: Jan 2002

Posts: 780

Likes: 0

C6 for 351 cleveland

There are a lot of sb C6 trannys in salvage yards in vans behind I6 and sb V8 engines. Should not be hard to find one. I have seen many 70 Mustangs with 351C and FMX transmission. So many that I thought this was standard. I have replaced FMXs with sb C6s.

May 9, 2002 | 04:35 PM

AZ4x4f150

Elder User

Joined: Jul 2001

Posts: 726

Likes: 0

From: Glendale USA

C6 for 351 cleveland

if you are running a 302 or a 351W the bell housings are the same.
If you are running a 351C or a 390 or 460 the bell housings are the same. you can not bolt the C-6 from the 302/351W to a 351C.
But you can interchange the insides from the big and small block C-6's
the torque converts will bolt up in either bell housing.

May 10, 2002 | 08:36 AM

DavidB

Elder User

Joined: Jan 2002

Posts: 780

Likes: 0

C6 for 351 cleveland

"if you are running a 302 or a 351w the bell housings are the same.
If you are running a 351c or a 390 or 460 the bell housings are the same. you can not bolt the C-6 from the 302/351W to a 351c.
But you can interchange the insides from the big and small block C-6's the torque converts will bolt up in either bell housing."

I am having a little problem with the post from AZ4x4f150 above. There are so many different bolt patterns that I sometimes have to stop and think about which ones interchange myself. My recollection is this:
I6,289,302,351W, AND 351C interchange
332, 352, 360, 390, 410,428 interchange
351M, 400, 429, 460 interchange

These engine bolts patterns DO NOT interchange between groups.

I am getting on in years. My memory could be failing. You might want check with others for confirmation.