this is a just freshened Ford 347 stroker race motor. boss 302 service block, 4 bolt mains, forged steel stroker crankshaft, eagle h-beam rods with arp bolts, forged pistons, world products Windsor sr 200 cylinder heads, ford racing damper, roller timing chain setup with Torrington thrust bearings has a 9 slot lower gear to advance or retard the cam. trw solid roller camshaft (brand new), Harland sharp roller rockers with stud girdles, trick flow push rods, canton 8 quart oil pan with windage tray and baffles, main cap girdle, Stewart stage 3 race water pump, mid distributor, Scott wires, single plane high rise intake manifold (new) Holley race fuel pump, head y duty oil pump drive. this motor is INTERNALLY balanced, the front damper is neutral balance and you must use a neutral balance flywheel .have pictures of the motor being freshened.