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First stroker...questions...

Posted: February 7th, 2010, 8:37 am
by spikestrip
Hi guys..I have a 1994 Jeep XJ 4.0 H.O.(2001 head on it). I think i spun a bearing, so I am looking at stroking it. What is the CHEAPEST way to build. I would like to do it with no machining(my town sucks, we dont have anybody that can do it). I have a list of parts I think i need. I just need straight answers. If it will work, tell me. If not, I REALLY need to know.

Reman 258 crank kit(maybe rods)
oil pan gasket
Cheapest piston set or new set of rings

So I want to use my stock cam and rods and pistons if I can get away with it. I just put head on it 2 months ago, so i know the pistons and cylinder walls are good. Bought the truck used(255,000 miles on it) and I think the motor had been swapped or rebuilt. Could clearly see hone marks and no lip in cylinder sooo...ANY help is appreciated, I need to get parts on the way so I can get back on the road! Its my DD..

Re: First stroker...questions...

Posted: February 7th, 2010, 9:53 am
by amcinstaller
with the longer stroke, you wont be able to use stock rods and pistons. you COULD use stock pistons with the shorter 258 rods though. check out cheromaniancs poor mans stroker, i think its the quickest and cheapest one. also, read the faqs and look at the stroker recipes. ive been there with the spun bearing, no fun.

Re: First stroker...questions...

Posted: February 7th, 2010, 10:41 am
by spikestrip
I found a set of Hypereutectic pistons, 8-7-1 compression ratio and 1.592 compression height. Will those work on 4.0 rods?

Re: First stroker...questions...

Posted: February 7th, 2010, 12:00 pm
by SilverXJ
No. If you are going to use 4.0L rods you need a) KB994 pistons or b) custom pistons.

Re: First stroker...questions...

Posted: February 7th, 2010, 9:18 pm
by IH 392
Did it spin a rod bearing or a main bearing?, the rod may be able to be rebuilt?, but is easily replaced, if it's a main the block will need a line hone at the least and could be worse than that!???

Re: First stroker...questions...

Posted: February 7th, 2010, 9:24 pm
by amcinstaller
also a good question. exactly which bearing did spin? also why? bent crank, no oil?

Re: First stroker...questions...

Posted: February 9th, 2010, 9:37 pm
by spikestrip
Im not sure what bearing..havent tore into it yet....what happened was I was driving and it started making a really loud ticking sound the a squealing sound, like metal on metal. I pulled my valve cover and all lifters are working and I am firing on all cylinders...it still has a slight tick and it gets louder when its at idle. I was about a quart and a half low on oil, and i did an oil change and it happened the next day(Its my DD, ya im drivin it). I want to get all bases covered before I tear into it so i can get parts on the way fast!