Which Block

[drobins]

I am new to this forum but not new to automotive work. I have seven automobiles and do 90% of all work myself or with the help of my wife.

I have two Jeep Grand Wagoneers. A 1982 and a 1987. I'm going to rebuild the engine for the 87 and add fuel injection. I'm consiering doing the rebuild on the 82 engine so I can continue to use the 87 while I do the engine work.

Otther than any defects is there any reason to favor the 87 block over the 82 block?

Thanks,
Dennis

[tufcj]

I've heard that in the late 80s they lightened the blocks a little by removing some material from the main webs. Those blocks have 2 extra freeze plugs behind the flywheel. I really haven't heard about any difference in durability though. Unless you're building something well over 500 HP, either block should be just fine.

Bob
tufcj

[drobins]

Thanks Bob. No big HP. Just trying to make it reliable and get as much fuel mileage as possible.

Dennis

[jeepsr4ever]

You should get the same result from either block if they are good. Chances are they are both good if they didnt come from a siezed motor.