JE 361348S Piston Single (86.25 mm Bore, 1.291 in. CH, -4.80 CC) for BMW S50B30 USA Engine

Description JE 361348S Piston Single (86.25 mm Bore, 1.291 in. CH, -4.80 CC) for BMW S50B30 USA 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: S50B30 USA
• Bore Diameter: 86.25 MM
• Piston Head Type: Dish
• Compression Height: 1.291 IN
• Piston Volume: -4.80 CC
• Piston Material: 2618
• Piston Quantity: 1
• Forging Type: FSR
• Piston Average Weight: 301 GR
• Ring Set Included: Yes
• Top Compression Ring Thickness: 0.0400 IN
• Second Compression Ring Thickness: 0.0480 IN
• Oil Ring Thickness: 0.111 IN
• Wrist Pin Outer Diameter: 0.866 IN
• Wrist Pin Length: 2.250 IN
• Wrist Pin Wall Thickness: 0.180 IN

Part numbers: 361348S

Special order: imported to order. Contact us for price and availability.