Jeep Strokers

I have a 2000 TJ 4.0L with 160K when the #2 piston skirt blew. It put a nice crack in the piston sleeve. It was so nice to be able to drain the oil and Raditor fluid out of the oil pan What a better time to build a nice stroker motor. Does anyone have a block, casting 327AB or 328AB? Does any place sell a machined block or short block? I have looked and called around (live in Columbus, Oh) for used engine or block. Everyone wants around $1200 for a used engine. Kinda of high for a motor I'm going to take apart and rebuild.

dumb question but why not just rebuild that block since it obviously won't be going anywhere under it's own power without being bored out and rebuilt first?

It didn't put a crack in the piston "sleeve". The 4.0L isn't sleeved. However, a machine shop may be able to sleeve it to save the block. You would have to talk to one. They might also have a source for rebuildable cores at a reasonable price.

just go to advance and get a replacement piston, mine did that trick of cracking three years ago. I went to work pulled all pistons out of my soon to be stroker block found they were all cracked and just bought a stock bore replacemnet for $20. engine still runs ok but with just a slightly irregular idle as the replacement has a slightly different dish and pin height.

disregard my last post as I didn't take notice to what the bore looked like . You should be able to pickup a complete rebuildable block at the local yard reasonably cheap.

That broken piston has left a nice crack in the cylinder bore, but a good machine shop should have no problem resleeving that cylinder and salvaging the existing block so you can use it for a stroker build.
Exactly the same thing happened to a friend of mine's engine last year (it was the no.5 piston) and we worked together to get his rebuilt into a 4.6L modified "poor man's" stroker. He's been smiling from ear to ear ever since.

Where are you? I have a bare block sitting in my garage, on a stand, cleaned, oiled, and wrapped in plastic. It´s from a 98, don´t know if it´s useful, but it´s in good shape and ready to go. I´m in MD, south of Baltimore- it´s yours if you want it.

doublins wrote:Where are you? I have a bare block sitting in my garage, on a stand, cleaned, oiled, and wrapped in plastic. It´s from a 98, don´t know if it´s useful, but it´s in good shape and ready to go. I´m in MD, south of Baltimore- it´s yours if you want it.

That is lovely to see! Sharing the love!

Update on the engine, found a used block for $150.00. Just had to get the word out and engine block fixed. Parts were ordered yesterday with the exception of a camshaft. Still trying to decide witch cam to go with. I read somewhere that comp cam does not recommend their cam with fuel injection? So, I was leaning to Mopar Performance P4529228. Will try to follow up with pics if I can get them to upload right.

SpeedL# wrote:I read somewhere that comp cam does not recommend their cam with fuel injection?

They say that about all of their AMC I6 cams but that's a load of crap. You can use their cam/lifters but DON'T use their valve springs.