Thanks for all the input, my local engine rebuilder wants $3000 to rebuild my motor without replacing the crank. I just passed up a 88k motor on ebay for @1400, now the only one there is like $2500. I'm finding SOHC for around $500. I love my Montero but I can't see putting thousands into a 15 year old truck with 200k. Theres one at the Pick n Pull with 160k that has an abondoned vehicle sticker on the windshield with the complete motor I'm tempted to grab but thats a gamble. As long as my crank pully bolt holds my motor runs great, I was just wondering if the SOHC was a bolt in.