Tru Power Engine Kit. 4-Cylinder Distillate, 248 CID. 3-7/8 inch Standard Bore, 4 inch Overbore Supplied. Flat-Head Piston, 5.56 inch Valve Length, Early Crank. Basic Engine Kit, less bearings. Contains sleeves & sleeve seals, pistons & rings, pins & retainers, pin bushings, complete gasket set, crankshaft seals. For M Series, MV Series, O6 Series, OS6 Series, W6 Series.
