I considered a 4.0 swap then ran across the articles about just using the 4.0 head with the reasoning of keeping the 4.2 block getting the low end torque and adding the 4.0 head to increase the top end. thats the theory anyway. need input from someone who has done this modifcation for results. thanks big jim for the suggestion to put this on the forum. lets get some feedback...

kerby2