JE Piston Sets -8 Cyl

Highlights

• Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
• Lateral Gas Ports: This process mills slots into the top of the top ring groove and provides a pathway for combustion pressure to get behind the top ring. Resulting in increased ring seal and is most common in circle track applications.
• Contact Reduction: Reduce the amount of contact area against the cylinder wall when the piston "Rocks over". Contact reduction also serves to disrupt the flame travel into the crevice area causing a reduction in detonation.
• 3D Undercrown Milling: The 3 dimensional undercrown milling machining process allows for uniform deck thickness therefore creating a lighter and more durable piston.
• 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.
• Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from.0003 to.0010 between the wrist pin and pin bore.
• Smooth Crown Finish: Deburs all areas around the valve pocket and dome area, to reduces stress risers and prevent hot spots.
• Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications.
• Double Pin Oilers: Deliver twice the amount of oil to the wrist pin as compared to the standard single pin oiler.
• Designed specifically for Chevrolet Big Block Engines To provide optimized performance durability.
• Includes high-quality wrist pins, and locks.
• Made 100% in the USA.