JE 279479S Piston Single SRP Pro 2618 (4.040 in. Bore, 1.425 in. CH, -5.00 CC) for CHEVROLET Small Block Engine

Description JE 279479S Piston Single SRP Pro 2618 (4.040 in. Bore, 1.425 in. CH, -5.00 CC) for CHEVROLET Small Block Engine

JE Pistons SRP Pro 2618 line expands on the premium features of the SRP Pro Series with extremely strong 2618 forged aluminum. The pistons maximize strength and value for small-block and big-block builds.

Forged in the USA, the 2618 aluminum provides the high tensile strength required for high-demand performance applications.

• Proprietary Forged Side Relief (FSR) design minimizes friction and power loss, reduces skirt width, and saves weight with a shorter Wrist Pin
• Ring groove placement maintains a positive seal in high-HP boosted applications, while the stout top land improves strength
• Low-friction skirt coating reduces wear and operating noise while optimizing performance
• Accumulator groove reduces combustion gas pressure and Piston Ring flutter, improving the Piston Ring seal for consistent power

Specifications:

• Piston Series: SRP Pro 2618
• Cylinder Head: CHEVROLET 23 DEG 20/30
• Bore Diameter: 4.040 IN
• Piston Head Type: Flat
• Compression Height: 1.425 IN
• Piston Volume: -5.00 CC
• Piston Material: 2618
• Forging Type: FSR
• Piston Average Weight: 438 GR
• Ring Set Included: Yes
• Top Compression Ring Thickness: 0.0480 IN
• Second Compression Ring Thickness: 0.0600 IN
• Oil Ring Thickness: 0.119 IN
• Wrist Pin Material: 5115 Low Carbon Steel, Case Hardened
• Wrist Pin Length: 2.250 IN
• Wrist Pin Wall Thickness: 0.150 IN