400 SBC INV DOME

SRP Professional pistons are the most advanced lightweight FSR forging that offers superior strength. SRP pistons are up to 20% lighter than traditional equivalent pistons. High-silicon 4032 aluminum alloy for reduced piston-to-wall clearance and quiet operation. Accumulator grooves for improved ring seal. Designed for normally aspirated or moderate forced induction nitrous engine applications. SRP professional pistons come standard with high-performance skirt coating and low drag performance piston rings. Ring land and crown thickness specifically engineered for mild turbo, supercharged, and nitrous applications. CNC machined domes with radiused valve reliefs provide optimum flame travel. Optional bearing steel pins available. Forced pin oiler for increased wrist pin lubrication. Pin fitting and double spiro locks included. 927-2750-150 wall wrist pin (130 grams) included. CNC Machined ring grooves accept 1/16, 1/16, 3/16mm rings (Rings Sold Separately).