Posted by MoparNorm on Sunday, June 05, 2005 at 10:23AM :
In Reply to: Re: jeep cherokee. posted by Chris Lube Lublin on Saturday, June 04, 2005 at 11:46PM :
The last year for the 4.2 was 1990, 4.0's started in 1991. The blocks look very similar and many parts are interchangeable. The 4.2 developes more torque, the 4.0 developes more horsepower. Some folks take the 4.2 crank (longer stroke) and use it in the 4.0 (larger bore) to make a 4.5 stump puller/horsepower machine.
MN
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