Colonel1958

300jk

Well-known Member
Had to send Jeff a stock cam. Bought one from Maibachs and had it shipped to him. Also sent him my tappets for surfacing. Told him what engine work was done and the rpm we were going to turn. He came up with the grind specs. Had valve issues with the grind though. Clearance, and springs were way too light. Sent the head out to a local machinist/pulling engine builder. He took care of the clearance issue and put in much heavier springs. We pull 5500/6500 lb. enhanced class. Tractor will turn 4000rpm. reliably. Can't remember the price, but don't think it was too bad. We also run his roller rockers. Hope this helps ! If not let me know and I will try to help.
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