JE 281800L Piston Single (4.140 in. Bore, 1.250 in. CH, -4.70 CC) for CHEVROLET Small Block Engine

Description JE 281800L Piston Single (4.140 in. Bore, 1.250 in. CH, -4.70 CC) for CHEVROLET Small Block Engine

JE Pistons applies over 75 years of experience to its range of premium forged racing pistons for European, import, and sport compact applications.

Engineered, forged, and machined 100% in the USA, these pistons are Designed for each specific engine and racing application to provide durability and performance.

• Forged from 4032 aluminum for tensile strength and minimal thermal expansion
• Proprietary Forged Side Relief design minimizes friction and power loss while reducing skirt width, weight, and Wrist Pin length
• Application-dependent skirt coating reduces friction, piston skirt and cylinder Wall wear, and operating noise
• Application-dependent accumulator groove reduces combustion gas pressure and Piston Ring flutter while improving ring seal

Specifications:

• Piston Series: JE Pistons
• Cylinder Head: CHEVROLET 13 DEG
• Bore Diameter: 4.140 IN
• Piston Head Type: Dome
• Compression Height: 1.250 IN
• Piston Volume: -4.70 CC
• Piston Material: 2618
• Piston Quantity: 1
• Forging Type: Round
• Piston Orientation: Left
• Piston Average Weight: 476 GR
• Ring Set Included: No
• Top Compression Ring Thickness: 0.0475 IN
• Second Compression Ring Thickness: 0.0600 IN
• Wrist Pin Material: 5115 Low Carbon Steel, Case Hardened
• Wrist Pin Outer Diameter: 0.927 IN
• Wrist Pin Length: 2.750 IN
• Wrist Pin Wall Thickness: 0.150 IN