4cyl and 6cyl Bellhousings???? - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 12-17-2000, 11:22 AM
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4cyl and 6cyl Bellhousings????

Hey Guys,

Can anyone tell me if the 4cyl engine from an 89 YJ would have the same bellhousing bolt patter (on the back of the block) as a 6yl engine. YJ from the same year? Are the BH compatable from engine to engine?


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post #2 of (permalink) Old 12-17-2000, 04:36 PM
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Re: 4cyl and 6cyl Bellhousings????

Every one that I have looked at and according to the word around the answer is "NO". Also when I was wrenching for Jeep, (late 70's early 80's) it seemed all the 6's and 8's shared the same bolt pattern excet the 4's.

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post #3 of (permalink) Old 12-17-2000, 07:57 PM
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Re: 4cyl and 6cyl Bellhousings????

GP'n you are correct.
I have an 85 AMC 150, and the bellhousings has a diifferent bolt pattern than the 258's, not to mention a hydro clutch, a smaller clutch, and a different front shaft for the trans.
It's kind of a shame that AMC made the front parts of the 4's and 6's similar, but by changing the BP on the rear, they discouraged motor swaps.
Jeesh, ya can't even swap trannies.
You can't tell that it's cost effective to make 2 different parts for basically the same application.


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