4.2 / 4.0 "stroker" build...need a few answers

[Ironmerganser]

I am yanking the motor out and doing below. Anyone have some answers to the questions I have below?

1. "Stock" AMC 258 i6 / 4.2l short block bored .030
2. 4.0 clearwater head (what rockers? 4.0 or AMC 258 i6 / 4.2l push rods?)
3. 4.0 intake (what year? what fuel rail? what lb injectors?)
4. 4.0 exhaust header (recommendations?)
5. 4.0 or AMC 258 i6 / 4.2l cam (stock or upgrade?)
5. Salvage yard engine harness (gotta find it yet)
7. Hesco dampner and crank sensor
8. Hesco speed sensor

Any other recommendations?

I posted this on the strokers forum, but no responses yet so I figured I would get the opinions of this forum also.
Thanks in advance!!!!!!

 

[CJim7]

2. AMC 258 i6 / 4.2l pushrods and rockers.
4. XJ headers from the mid to late 90's work very well.
5. AMC 258 i6 / 4.2l cam...stock is good, i upgraded to a 262 duration for better low end without sacrificing the topend.

 

[fzsk4p]

Go here. The stroker bile

Jeep Strokers • Homepage

FWIW I am running a 4.9 stroker.

4.0+.080
AMC 258 i6 / 4.2l 12 wt crank
Eagle rods
Diamond pistons
and stuff

 

[Ironmerganser]

Thanks for the info!

Can I use the AMC 258 i6 / 4.2l rockers on the 4.0 head?

 

[CJim7]

Thanks for the info!

Can I use the 4.2 rockers on the 4.0 head?

Yes, as I stated.
But side by side, I could not tell the difference between the AMC 258 i6 / 4.2l and the 4.0 rockers.

 

[81laredo]

I started to go this route but decided on the Howell kit instead. I have all of these parts off of a 1991 Cherokee including the Harness. If you are interested send me a PM.

 

[Ironmerganser]

I started to go this route but decided on the Howell kit instead. I have all of these parts off of a 1991 Cherokee including the Harness. If you are interested send me a PM.

PM sent. Thanks!