Jeep coolant temperature help

[Destroyer]

Originally Posted by THEFERMANATOR

The 96+ engines I had would crack between the ring lands when run hot. And you need the special fixture to change them out. The pistons where the rods go in is angled but the rods are flat, so you have to have the tool to hold the rod to press them out. 87-95 engines were flat in the piston where the rod went, and the rods were flat so you could just support the piston and press them apart. Just one more reason I like the 91-95 engines. Now if you find a 93-94 grand Cherokee short block to drop in, you will have a screamer on your hands. 93-94 grand Cherokees had a much more radical duration to the camshaft and held the valves open longer. 96+ engines made there power with hotter tuning, 91-95 engines did it with a better cam. Put a 91-95 cam in a 96+ truck and you will notice a difference. I put a 93 cam in my 88 and it woke it right up. Put one in a 96 and that sucker flat out MOVED! Then again these were just budget builds because I had the 93-94 grand Cherokee cams in the shop.

Well, hopefully I'll just find some cracked rings and that will be the end of it. If I have to press out the wristpins I'll talk to one of my friends who works for Chrysler and see if he has the tool that I can borrow. Or if it's really damaged I'll say the hell with it and go the transplant route. I know this guy that has a 97 4L engine with about 70K on it that he can't give away.... And I'm thinking I can buy it from him. Only problem is I'll have to drive to Fla to get it.. but I've done that before so it's no big deal.