Bullet Piston LS1/LS2 4.005/4 inch Stroke Dish -27.8
LS Chevy 403, 4.005 Bore, 4.000 Stroke, 6.125 Rod, 1.110 Compression Height, -27.8cc Dish, Advertised Weight 406, Set of 8 Pistons and Rings Included
The dish design with -27.8 cc volume helps reduce the compression ratio, making this piston ideal for applications that involve forced induction (such as turbocharging or supercharging) or other high-performance builds where a lower compression ratio is necessary to prevent detonation. The 4.005-inch bore combined with a 4-inch stroke offers a balanced displacement suitable for boosting performance while maintaining engine reliability under higher power levels.
Features
Piston Brand/Model: Bullet Piston
Engine Fitment: LS1/LS2 (5.7L or 6.0L V8 engines from GM's LS family)
Bore Size: 4.005 inches
Stroke: 4 inches
Piston Type: Dish design (concave top)
Dish Volume: -27.8 cc (concave area on piston)
Application: Performance or modified LS1/LS2 engine, designed for lowering compression ratio, often used in forced induction applications