Im about to purchase a 2005 TJ X that has been nicely built. It has a 14 bolt rear and dana 60 front, and 40's 5.13 gearing (alot more but i felt those were only important ones for this discussion). It also has the 6 speed. The stock 4.0L isnt going to cut it for me as this will be my daily driver and weekend toy.
So i want to do a motor swap to have that extra power compensate for the added weight so im not getting 8-10 mpg when driving. I have about 7-10K extra to use...i know 7 prob isnt alot or enough for a motor swap i was thinking 10 would be, seeing ive found slightly used LS1 Engine/tranny/ecm combos for 3000-4000. I prefer to do a direct injection motor but not dead set. Or i was thinking the Golen 4.6L stroker with 29lbs injectors, CAI, headers/exhaust/ and bigger throttle bottle to get 300HP.
What motor/direction do yall think i should use to get the best MPG out of my Jeep?