Forged Piston & Ring Kit, 100mm Bore (-26.4cc Dish) 291060 J291060 Suit Subaru EJ25 Block with EJ20 Head, 79mm Stroke, 130.5mm Rod Length WRX STI PISTON -26.4cc, 100mm This piston set is forged from 2618 T6 high tensile strength aluminium and is engineered for high horsepower Subaru engines. Features include Forged Side Reliefs (FSR) and smooth flowing radii.

Includes

:

.905 x 2.250 straight wall carbon steel wrist pin

1.2x1.2x2.5mm rings

Pin fitting

Wire locks

Specifications

:

Part #: J291060

Bore: 100.0mm

Oversize: 0.50mm

Stroke: 79.0mm

Rod Length: 130.5mm

Compression Height: 30.7mm

Chamber Volume: 48.0cc

Compression Ratio with .040" Head Gasket: 8.5:1

Dome Volume: -26.4cc

Gram Weight: 416

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.