KB Hypereutectic Piston Set, 4.030" Bore, -0.5cc Dome

The Keith Black KB111-030 piston set is engineered for Small Block Chevy (SBC) 383ci stroker engines. These pistons are crafted from a Hypereutectic 390 alloy, known for its strength and durability, and are designed for high-performance applications. Key specifications include a 4.030-inch bore diameter, a 3.750-inch crankshaft stroke, and a 5.700-inch connecting rod length. The compression height is 1.433 inches, and the deck height is 9.025 inches. These pistons feature a -0.5cc solid dome volume, suitable for achieving specific compression ratios. These Keith Black pistons are fully machined with valve reliefs and triple spiral lock rings. The CNC machined pin bores ensure precise alignment and fitment. They are ideal for builders seeking a lightweight, high-compression piston for their SBC 383 build.