JE Pistons 5.4L FORD 8.5:1 Set of 8 Pistons - 227125

JE Pistons is the leader in forged racing pistons. With 70-plus years of experience, in-house forging, and industry-leading technology, JE Pistons are designed to perform at the top levels of all forms of motorsports.

Features & Benefits

• 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
• Patented Dual Velocity Gas Ports combine the benefits of traditional gas ports, reducing ring flutter and movement while optimizing fuel efficiency and power output?without the risk of carbon build-up
• Made 100% in the USA

Specifications: Bore Diameter 3.552, 2618, Inverted Dome Dome/Dish Piston Kit, Set of 8

JE designs are specifically engineered for extreme upplications up to, and including, professional competition

Detailed Specifications

• Oil Groove Width: 0.11900 in.
• Piston Average Weight: 379 g
• Piston Volume: -21 cc
• Wrist Pin Outer Diameter: .866 in.
• 2nd Groove Width: 0.06 in.
• Top Groove Width: 0.06000 in.
• Wrist Pin Length: 2.500 in.
• Engine Stroke: 4.165 in.
• Piston Head Type: Inv Dome/Dish
• Contact Reduction: Yes
• Double Pin Oilers: Yes
• Pin Fit: Yes
• Compression Ratio Actual: 8.5
• Cylinder Head: FORD V8 SB 36
• Forging Type: Full Round