Tru Power Engine Kit. 4-Cylinder Distillate, 152 CID. 3-3/8 inch Standard Bore, 3-7/16 inch Overbore Supplied. Flat-Head Piston, 5-1/16 inch Valve Length, Early Crank. Basic In-Frame Kit. Contains sleeves & sleeve seals, pistons & rings, pins & retainers, valve-grind gasket set, oil pan gasket. For 4 Series, H Series (prior to S/N 391357), HV Series (prior to S/N 391357), O4 Series (prior to S/N 33339), OS4 Series (prior to S/N 33339), W4 Series (prior to S/N 33339).
