4.0L HO Jeep Engine Build

escout314 said
Roger that.
Vehicle--2000 Jeep XJ, Auto, 8.25 rear
Tires--30X9.50 R15
Gears--Stock (3.55's I believe) I may re-gear to 3.90:1 if I switch to 31" tires

Gotcha. So quench....If I recall correctly, you mentioned how it helps deal with detonation. Why not do this out of the factory?

I might do something similar with the valves. I've never seen the seat moved like that before. What did that cost roughly, if you don't mind sharing? I'll be getting this done in CO

It's too costly for the factory to set quench clearances so tight, that's why they don't do it.

I don't recall the cost, but I have DC engineering do all my engine work. They don't move the seat per say, but grind the valve to get the seat where it needs to be. Mandatory that you start with new valves.