Where can I get a replacement crate 4.0 engine?

[JEEP GC]

I just bought a 1997 TJ with a blown engine. 250,000 miles and want to replace with a new crate 4.0L. What vendors sell the best engines........

 

[Mudflat]

I have no personal experience, but I’ve heard good things about Jasper Engines over the years.

 

[SoCalTJ]

I haven't pulled the trigger yet but these are the ones I started to look at....

https://www.mabbcomotors.com/catalo...-core-required/manufacturer/jeep#fndtn-panel6

https://www.sandjengines.com

https://www.jasperengines.com

 

[lulzpwndyah]

I have a Jasper in my Wrangler. Solid, no leaks just works. I'm pretty happy with it I've driven 5k miles in a year though so not much. I've had maybe 3 oil changes.
I don't hesitate to go anywhere with it. Just make sure you do the cooling system too, you might have other things give for example, my coil pack had to be replaced as well, I got misfires on a cylinder. IACV also swapped because it wasn't idling smooth. Mechanic said since the engine is the strong point now the weaker things started giving way, which imo makes sense.

 

[GaTechTJ]

Plus one for Jasper - I put a Jasper in mine at the beginning of the year and have had no issues.

 

[Andy-WhiteTJ]

I put an ATK engine in mine in 2010. I have 40,000 miles on it. Runs fine.

 

[JEEP GC]

I decided to go with a reman 4.0L from S&J Engines. Really don't think that I need need a true crate or Stroker. AND THE JOURNEY BEGINS ! LONG LIVE THE TJ