JE Pistons 281851 Features:

As the leader in forged racing pistons, JE Pistons has applied over 75 years of experience to its wide range of premium forged pistons for domestic applications. Engineered, forged and machined 100% in the USA, JE Pistons are designed for each specific engine and racing application to provide the ultimate combination of durability and performance. From dirt track to drag strip, JE Pistons? performance is proven in victory lane time and time again. Equip your engine with the best in forged pistons.

• Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
• Designed specifically for each engine and use application to provide optimized performance durability
• Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
• Skirt coating (depending on application) reduces friction and wear on piston skirts and cylinder walls while simultaneously reducing operating noise
• Accumulator groove (depending on application) helps reduce pressure from combustion gases, reducing ring fluttering and improving ring seal for consistent power
• Made 100% in the USA
• Piston Series: JE Pistons
• Cylinder Head: CHEVROLET 23 DEG 20/30
• Bore Diameter: 4.040 in.
• Piston Head Type: Flat
• Compression Height: 1.125 in.
• Piston Volume: -4.10 cc
• Piston Material: 2618
• Piston Quantity: 8
• Forging Type: FSR
• Piston Average Weight: 357 GR
• Ring Set Included: No
• Top Compression Ring Thickness: 0.0436 in.
• Second Compression Ring Thickness: 0.0440 in.
• Oil Ring Thickness: 0.119 in.
• Wrist Pin Material: 5115 Low Carbon Steel, Case Hardened
• Wrist Pin Outer Diameter: 0.927 in.
• Wrist Pin Length: 2.350 in.
• Wrist Pin Wall Thickness: 0.150 in.
• Engine: Small Block
• Make: Chevrolet
• Engine Type: ICE