US-86MJ

Thanks for the insight...probably just stick with the stock 4.2 manifold until I can buy a Clifford's Performance intake manifold. Headers will be first tho and a cam is already on the way :D

It's gonna be the trail rig so I eventually wanna go the stroker route.

Can't I just use the 4.0 intake manifold? Flip kit..I could but I already have a AX-15 and NP231 that are bolted together..just gotta bolt up the bellhousing to the motor. Stroker is in the future plan, as of now, I gotta be ready for an event Memorial Day Wknd.

As the title says.....I'm loyal to Clifford's...just curious on opinions bc I've never had a 4.2L.

Oh and Welcome To The South!! :high_five:

You're not far at all buddy..right outside Knoxville myself..3mins from Bass Pro Shop..just got back from Redneck Resort Mud Park in Sweetwater last weekend..you should come to their next event in May for Memorial Day...beer drinkin and hell raisin is strongly encouraged there lol As for the beer/fire or meet & greet..I'm down.

Do you have any info on the 4.0 head onto the 4.2 block? What about 4.2 conversion to TBI? Heard of both increasing gains of 40+HP apiece?

Now I'm cookin with peanut oil...I'M BACK JACK!! Lol Thank ys sir..my big issue just disappeared...now begins the fun part...pullin the 2.5 and droppin in the 4.2 lol wish me luck.

Looks like the AX-15 off a 4.0 will bolt to the 4.2 bc they are bolt small bellhousimg bolt patterns...can anyone shed some light or confirm this?

2.5 I-4, AX-5, 231(drivers drop)...INSTALLED 258 I-6, T-4, Spicer 300(passengers drop)...waitin to be dropped in... My question is..if I have an AX-15 from a '90 4.0 I-6..will it bolt up to the 4.2L I-6? If not, what other transfer case can I get to fit the T-4 that is drivers drop.. OR..... what manual trans can I get that will bolt to the 4.2L I-6? Doin this swap ASAP!!! Thanks for the time and direction in advance.

Kodak here(right outside of Knoxville) Just bought an, 86 I-4, 5spd, 2wd...converting to 4.0HO, 4wd. My '91 XJ 4.0, AW-4, NP231