ya, i have a 91 cherokee to donate a 4.0 and my 4.2 block. maybe down the road i can put together a stroker. i was happy with the 4.2 in my 87 yj, but could see a little more power. i have a np207 in my wrangler now, a cherokee 231 and my son has a yj 231 thats stuck in 4 hi so maybe a good time...