Model B engine with the CB crank that has the weights sweated on. Does turn over. I can not see any cracks in the deck but it does have minor pitting near the valves. Exhaust valves have hardened seats. Comes with nice straight and dent free oil pan, flywheel, flywheel housing, head and valve cover. I believe it to be .020 oversize. Prefer local pickup. I take PayPal or postal money order.