Has anyone tried the 505 Performance 3.8/4.1 stroker? Seems like it would be easier and cheaper than an engine swap. they claim 280hp and 340ft/lb torque for the stage 1 kit. I don’t know anyone that has used them so I can’t recommend.
A quick Google search turned up some concerning reports of dealing with this company. I like the idea of a stroker motor as apposed to swapping in an LS or Hemi to get the power up to an acceptable level BUT I also prefer stock components when possible, even if they are other vehicles stock components to make up my vehicle. From my XJ days and people stroking the 4.0 inline6 to 4.5/6/7/8 and seeing the tuning, issues changing parts etc to get it right I just dont see it as a viable option for reliability. In my opinion, the Hemi swap is pretty tried and reliable and it seems the LS swaps are just as good but seem to get back into that tweeking to get it right, I am probably not up to speed on LS swaps but that is my interpretation putting a GM motor/ECU/can bus into the Chrysler BCM/can bus.
In addition, I am not a fan of the terrible (IMO in an heavy JK) 42rle auto transmission in the 07-11 JK. Boosting or increasing displacement on the 3.8 still leaves you with this piece of crap transmission that cannot put the power down to the ground effectively or reliably. Just my opinion.
Getting myself confused on which thread I am on, I would recommend getting your axle gears sorted out first UNLESS you have unlimited funds and ability/time to swap engines is the best first step, if nothing else to help that transmission last a little longer. My previous post may be a little contradictory to that statement but combining the threads I am a bit unsure on what youre expecting from either of these modifications (axle gearing/power increase). If youre running less that 4.88 axle gears swapping will be a noticeable upgrade that might be all you need and would be even better with more power. If youre looking for more than just making it not frustrating to drive (engine swap/etc) my recommendation would be AEV 5.7 545 auto swap. It will work like it was meant to be there, service at dealer or other places without a huge explanation etc. Need a replacement motor or transmission down the road just get a factory replacement instead of doing anything custom what may bot be available years down the road.