When we did it we used a TH400. Put the innards from a Buick with a variable vane torque converter. Changed the output shaft and tail housing. Back then no Chevy 4X4 had a 400 turbo, they were all 350's. No big block 4X4's 'till 1980. Small block TH400 came with the 400 inch small block. Al
hey! my buick 350 is in one of those too, a 66 j2k Gladiator - took the AMC 327/T5 combo out and swapped in a sbb from a 73 century, used the adapter ring, th400, d20, and crossmember from my old 69 wag. bolted right up. had to get the front driveshaft modified to fit, think everything else was a straight bolt in
some of the older jeep pickups had 350 buicks in them from the factory with th400;s and some of the amc powered jeep trucks had a adapter to use the bop trans and then there was a case made the use th400 intards and the amc patteren. odie
Was this ever completed? If so, I would like to see some pics. More I think about it, the more I would like to do this swap. 100+ lbs off the front end of a 4wd truck is HUGE when off-road.
I never did complete the swap with that truck. I still plan to do the swap but this time with a 88-91 chevy blazer 4x4 full sized and add single turbo, 4 studded tires and have a fun winter driver. Buy that crossmember engine mount for the Buick v6 and weld it into your frame and bolt the Buick 350 in place
It looks like the worst part of the swap will be rerouting the fuel lines to the driver side. The weight savings factor in this swap cannot be ignored. Add a TA intake and you are much lighter up front. WIN WIN!
I always think of a 75 blazer(full convertible) with a buick 350 my only concern is i dont know what output shaft is needed to make the transfercase work with the buick DS should be the same. other then that the bellhousing adapter and speedway engine bellybar make it an easy swap mounting wise
You could just leave the trans and t-case in place and use the bellhousing adapter to go to the Buick 350, fabricate engine mounts or use the Speedway engine mount setup. No need to move the t case or mess with driveshafts.
