Buick 231 Engine Swap - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 03-23-2001, 11:28 PM Thread Starter
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Buick 231 Engine Swap

What is required in swapping a 231 buick V6 into a stock 79 cj?? I have a 3 speed trany and currently a 258 engine. Just looking at the posibilites. I can get into a v6 in good shape at the local bone yard for 25 bucks it is clean and was kept on a rack inside... Also for those who have done it is there any bell housings outh there that I could get for the adaption or am I going to have to fork over advanced adapters prices???? Thanks


97 TJ 31's and mostly stock but seeing what I can do about that..
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post #2 of (permalink) Old 03-24-2001, 05:31 AM
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Re: Buick 231 Engine Swap

Hmmm...I can't think of any easy ways to dig up the right standard flywheel, bell housing, ect, that would bolt to your D-20 t.c. I think the best thing you could do would be to dig up a T-350 auto and D-300 transfer case, then bite the bullet and buy an A.A. or Novak adapter for those. The slightly lower low range ratio of the D-300 makes a world of difference. Then, further down the road, no matter how mild or wild your Jeep projects take you, the engine-trans-t case are DONE! (then come the springs, gears, lockers, Swampuhs....)

Grant
60 CJ5
80 CJ5
post #3 of (permalink) Old 03-24-2001, 01:26 PM
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Re: Buick 231 Engine Swap

When I had the 231 buick in my CJ7 it needed an adapter from the tranny to the t-case. If I had keep the 231 instead of the 350 I would have bought a GM 4 speed tranny like a Muncie 465 and adapted it to the t-case. The engine and tranny are farely cheap and easy to get. The other option is to go over kill like me and put a chevy 350 with a NV 4500 and Dana 300 in. The 231 is a nice engine with good torque, but I decided that I was only doing this once and I was going to do it right.

Tim Springer
1980 CJ7
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