Cool Jeep 4.0 Stroker Kit For Sale 2023. Web i would still be a big pain, but if you got a 258 (4.2) block and bottom and then your 4.0 head and everything up it is supposed to be good for a pretty good hp increase. I've build a few stokers easy if your doing a basic build say up to 270 hp all you need is to decide weather you are going to.
One hesco 4.7 stroker produced 267hp @ 4700rpm and 332lbft @ 3400rpm at the. It is a long stroke version of the old 232. The 300hp is our entry level engine package and they normally make between 290.