BBC Domed Piston Set 4.500 Bore +17cc

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. Designed to fit Edelbrock performer & RPM series heads (110 & 112cc) as well as most open chamber GM, Dart, and Brodix Heads. CNC machined domes with radiused valve reliefs provide optimum flame travel. Pin fitting and double spiro locks (#990-042-CS) included. 990-2930-15-51S wrist pins (150 grams) included. CNC Machined ring grooves accept 1/16, 1/16, 3/16mm rings (Rings Sold Separately). If you're looking to boost your Chevrolet Big Block engine's performance without breaking the bank, this kit is a fantastic choice for building a mild to moderate performance engine that’s ready to hit the streets or the strip. Born from the extensive racing experience of JE Pistons, the Sportsman Racing Products (SRP) line combines high-quality forged piston performance with budget-friendly pricing. Made entirely in the USA, these pistons are crafted from durable 4032 aluminum alloy, ensuring they can handle the demands of performance engines while minimizing thermal expansion. Incorporates forced pin oiling for superior lubrication of the wrist pins. Designed specifically for Chevrolet Big Block engines, the 212140 piston kit ensures a seamless fit and reliable performance. Whether you're working on a classic restoration or a modern build, these pistons are engineered to meet the demands of your vehicle.