anyone know if a '90 YJ radiator will work in a '93 YJ? I know the part numbers are different, but the only difference I can see so far is the '90 is thinner with 3 rows instead of 2 on the '93 which is .75 in thicker.

Bolt it up and go, if it don't fit, make it fit, just like sex.

probably waht I will end up doing as I am getting the radiator for $20 tonight, just thought I would see if anyone knew. Gotta keep my re-built :rasta: :beer: 4cyl cool. Bored way the hell over I am curious as hell to see how it performs. Guess I should get to building

I just rebuilt my 2.5L, bored 0.030 over, with a Mopar purple cam and springs, milled 0.010 off the block and 0.020 off the head (or was it the other way around?) zero deck height, 10.25:1 compression, pacesetter header, TB spacer, seems to run good, lots more power than the 90k original, I keep it cool with a Griffin 2 one inch cores aluminium radiator, 22"x19" stuffed into the short-nose CJ-5 front clip on my '95 YJ. I'm running an electric fan off a Pontiac 6000 with no mechanical fan and she's never come past 200 with a 195 degree thermostat.

you went a bit further than I am. I am bored .060 over, mopar .430 lift cam, MSD blaster coil, basic vavle grind and crank grind, and a 4.0l TB once I get my hands on it. Existing cold air intake w K&N to be used again. Hopefully it will kick a bit more. Would have liked to do some porting and polishing, or balancing, but finances just don't allow right now. guess melting that piston wasn't an all bad thing, just hate not having a Jeep in the middle of the summer.

The mill work on mine was due to a freeze up and pop job I did on a winter run (-17 degrees and we were camping in a tent) too much water in the anti-freeze, bad, bad, bad. I'm also running a K&N with a homemade tube setup that will soon get ditched for a snorkel, and I'm looking for a good 4.0L TB or maybe the Rubicon custom one, but that's a little too pricey. My head is ported a little, not much, but there's not much you can do anyway.

where do you nitice most of the power increase? top, bottom or all through the power band? Yeah only so much you can do

(by the way how long you been in Alpena? I was up there last summer mapping wrecks in thunder bay, whish I had known there was wheeling)

Been in Alpena all my life, although I work in Ann Arbor during the week right now. I remember hearing about some mapping going on out on the wrecks, haven't been diving in over ten years. I did some Hyrdographic survey work for the local harbors two years ago, the only time I've spent on a boat in the last ten years, crazy. Not much wheelin' in Alpena, but we're working on it, we just got our club going a year ago, check out our much in need of an update website, in my sig. I'm also running for president of Great Lakes Four Wheel Drive Association, hoping to make a difference.

I gained a good amount of low and mid range, which is what I needed, and she'll still buz up to 6000, just wish I could turn the rev limiter back a few, it's still making power when she starts bouncing. I recently swapped in an SM420 trans, so my dune blasting days are over, but I love it on the rocks. Still gettign used to the new gear choices, and I'm about to change again to a Dana 300 flipped and clocked.

UP TO 6000?? I never hot much past 3000!! This sounds better already. I should stop wasting time and dive in here.