Auto Motor Match up -
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post #1 of 2 Old 01-07-2016, 11:30 PM Thread Starter
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1986 CJ7 
Join Date: Jan 2016
Posts: 2
Cj Auto Motor Match up

I have a 1986 CJ 7 with a Factory automatic. on a 4.2 L motor if I want to put in a different Motor which would be a almost Bolt on application.:

lvalin is offline  
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post #2 of 2 Old 01-07-2016, 11:51 PM
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1979 CJ5 
Join Date: Feb 2008
Location: Southeast
Posts: 846
6 cylinders- 232,258, Jeep 4.0
8 cylinders- gen3 amc v-8's, 304/360/390/401
To the best of my knowledge all gen2's also share the same bell housing but the short deck blocks are not a desirable due to the limited displacement.

Also AMC motors are externally balanced so you will need a flex plate to match the respective motor size.

Obviously I didn't bring up all the supporting mods. Suspension/cooling/and drivetrain necessary for the power increase.

1979 CJ5 408 AMC dana 60/14b, T18, d300, PSC hydro assist
1948 Willys CJ2a LS 4.8/sm465 scout 44's
levergun is offline  

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