So I just got a 4.5L jeep motor that has 250psi to the heads. Its putting out about 475 horses. I need help locating a transmission rebuild kit that will be able to withstand the power and a tcase rebuild kit as well. Any tips or special "touches" people have learned or know on rebuilding these would be greatly appreciated

What transmission and transfer case do you have?

Woah. That's a lot of power for a pushrod straight six without boost. At that point, I'd buy an adaptor and shoe-horn a TH400 in there.

https://www.advanceadapters.com/prod...transmissions/

It's a 1989 Laredo with a stock trans and t case

Nope I'm out.

250 psi ??

.....sure ya don't mean 25 psi ??

250 psi static compression would equate to about 12:1 compression. That would be crazy if it was 250 psi dynamic compression! Or 25 psi boost would be cool too.

Would like to know more specifics about this engine as I cant say I have seen a 475hp NA Jeep straight 6.

What transmission?

Could be...just never heard someone refer to their engine as 'having 250 psi to the heads' for static CR

Ya, you and me both.... Just taking a guess. Only the OP knows what he really meant haha.

I figured 25 psi cuz the 0 & P are right beside each other & easy to fat finger

I think all you guys are being trolled. Look at his/her other posts........

As much as I didnt want to get caught up in it, I was very curious about this engine

I'm sure of it.....but figured it may be fun to see if he puts his foot in his mouth

This engine was built at motor works in spokane WA, I currently work there. It's a stock 4.0l that was bored 30, has a brand new scat crank, has an rv cam and the block was decked. It has 250 psi compression. If you dont believe it be at the mud bogs this upcoming spring and you'll see this beast all over the place