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Are the 4.2 AMC motors from the 79 CJ7 any good?
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The straight 6 AMC 258 has a following of loyals... Some with the smaller 232 swap them in for an improvement in performance...
Same bolt pattern as an AMC V8 I believe...
Hope that helps...brad
5.0L | 435 | 203 | 300 | 4.10 | 39.5
Buildup BACK underway...
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This may be a crazy question but is it a better motor than the straight 6 4.2 that's in my 87 YJ?Comment
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I believe that the pre 75 4.2's are sought after. The 4.2 weighs 110lbs. more than the 4.0. Combine parts from both and make a stroker. To be as paticular on a year for the motor as you are would only be worth it if you were planning on making crazy amounts fo power from it.sigpicComment
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