'91 4.9 swap into a rear drive application?

chiros · #1 (**permalink**) 10-05-07, 12:11 AM

I'm thinking my spare 4.9 would be a great swap into my mint '82 Chevy S10 2wd sb. I'd planned to use a chevy small block, but I love this Cadillac engine, and it may be a better package all around, what with the lighter weight, low profile, etc. Obviously a fwd to rwd swap, probably use a 4L60E, need to fabricate mounts, etc. Anyone know if the rwd trans will bolt up? Anyone done this swap, or one like it??

Edahall · #2 (**permalink**) 10-05-07, 06:46 PM

Nope, the 4L60E transmission will not bolt to the 4.9L. You'll probably have to make an adapter to get it to mate up. You might want to give http://www.advanceadapters.com/ a call. They might have what it takes to get this to work. Yes, I agree the lighter 4.9L would be a better all around package in your S10. Good luck.

The Ape Man · #3 (**permalink**) 10-08-07, 09:27 PM

There WAS a guy fabricating RWD swaps to replace the HT-4100 with a 4.9. IIRC they used the HT-4100 RWD block with all the wet sleeves and other parts from the 4.9 to get the bellhousing needed. I have not heard about these in the last 5 years. It was on the WWW a while back. Great idea especially if an updated PROM came with the other parts.