SRP139625 Srp Sbc 4.155″ Pistons 21cc Dish 3.750″ St 5.700″ Rod 1.425″ Ch

Description

Maximize your engine’s efficiency and durability with pistons designed to maintain optimal combustion and withstand high-stress environments. These SBC 4.155″ pistons feature a -21 cc dish that improves combustion chamber dynamics, reducing detonation risk and promoting consistent power output.

The 3.750″ standard stroke length combined with a 5.700″ rod length and 1.425″ compression height ensures precise piston-to-cylinder alignment. This configuration maintains mechanical balance and minimizes wear, extending engine life under rigorous performance demands.

• 4.155″ Piston Diameter: Offers a tight fit within the cylinder bore, minimizing blow-by and improving compression for enhanced power delivery.
• -21 cc Dish Volume: Optimizes combustion chamber shape to reduce knock and increase thermal efficiency, translating directly to smoother engine operation.
• 3.750″ Standard Stroke: Matches common crankshaft dimensions for compatibility with many SBC engine builds, ensuring reliable fitment and performance.
• 5.700″ Connecting Rod Length: Provides ideal leverage and piston speed characteristics, balancing power output with component longevity.
• 1.425″ Compression Height: Guarantees correct deck clearance and piston positioning, critical for maintaining engine geometry and performance consistency.

Constructed by SRP, these pistons come with exacting manufacturing standards to deliver a weight of 6.85 kg, ensuring robust strength while maintaining manageable reciprocating mass. The overall dimensions—73.00 cm length, 30.00 cm width, and 12.50 cm height—reflect packaging optimized for standard SBC engine configurations.

This piston set is engineered specifically for engine builders seeking reliable, high-performance components that integrate seamlessly into SBC platforms. The precise dish volume and size specifications enable fine-tuning of compression ratios to meet specific power and efficiency goals.

Choose these pistons to enhance combustion stability, reduce engine stress, and improve overall power output with components built to exact standards. Their compatibility with standard stroke and rod dimensions ensures straightforward installation and consistent operation under demanding conditions.