Hypereutectic Flat-Top Piston Set, 4.030-Inch Bore

The Keith Black KB120.030 piston set is engineered for Small Block Chevrolet 350 cubic inch engines, offering a direct fit for applications utilizing a 5.700-inch connecting rod length. These pistons feature a flat-top design with two valve reliefs and a 7cc dish volume, ideal for various compression ratio targets. Key specifications include a 4.030-inch bore (102.362mm), a 3.480-inch stroke, and a 1.561-inch compression height. The wrist pin style can accommodate either press-fit or floating configurations, with a standard 0.9272-inch wrist pin diameter. The pistons also feature a skirt coating to reduce scuffing and friction. Each piston weighs approximately 587 grams, with a 145-gram wrist pin. Piston rings are not included with this set.