Originally created for the Crawford Performance Unlimited AWD Time Attack Subaru and Ken Block's Gymkhana race car, these pistons are now available to the public. The new pistons are 100% CNC machined from high quality 2618-T6 wrought aluminium bar stock and are specifically designed for high horsepower road and drag race engines. The pistons feature internal and external bracing for improved durability and strength. A unique "donut dish" crown and application-specific under crown profile properly redistributes heat and reduces stress concentrations experienced in high horsepower Subaru engines. Unlike forged pistons, the billet pistons are machined on every surface allowing for all unnecessary weight to be removed during manufacturing. The result of this new process is a weight reduction of up to 32 grams compared to other piston set designs! High quality 9310 steel wrist pins and JE Pro Seal Rings are included. For severe racing applications, upgraded Diamond Like Carbon (DLC) coated wrist pins are available.

Includes:

• .905 x 2.250 premium 9310 steel wrist pin
• 1.2x1.2x2.5mm rings
• Wire locks

Specifications :

• Part #: J286463
• Bore: 100.0mm
• Oversize: 0.50mm
• Stroke: 79.0mm
• Rod Length: 130.5mm
• Compression Height: 30.7mm
• Chamber Volume: 57.0cc
• Compression Ratio with .040" Head Gasket: 8.8:1
• Dome Volume: -15.1cc
• Gram Weight: 392
• Footnote: Accepts Turbo and Nitrous
• Skirt: Forged Side Relief
• Included Ring Set: JC4404-3938

With over 60 years of experience, JE Pistons is the leader in high performance forged pistons. We've built a reputation that the competition can only follow. JE has a history of manufacturing the highest quality pistons and components that professional engine builders, race teams, and high performance enthusiasts trust and rely on.

The top engine builders in NASCAR, ALMS, NHRA, AMA Supercross and others choose JE Pistons over any other brand. For over 60 years, JE's position at the forefront of performance piston manufacturing has been a result of continuous research and development of unique materials, piston designs and technologies. Utilising State-Of-The-Art CNC machines for manufacturing along with purpose-designed forgings, JE is able to maintain exacting specifications on each and every piston and hold tolerances to millionths of an inch. Also available from JE is industry-leading processes like Ultra Crown, a Digital Three Dimensional piston crown machining process and Finite Element Analysis (FEA). FEA is a computer process whereby stress and fatigue are tested on a computer model before it goes into production. JE is the only performance piston manufacturer to earn the QS-9000 quality standard which confirms that JE provides customers the highest standards in quality control. In addition, we also have State-Of-The-Art inspection equipment and testing equipment which enables us to constantly bring you, the customer, the very latest in piston design configurations.

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