Manley 612102C-4 Forged Pistons for Subaru Bore Compression Distance Dish - 99.75mm 1.209

These pistons feature a 99.75mm bore diameter with a 1.209-inch compression distance and a dish-style top configuration for optimal combustion chamber geometry.

Key Specifications:

• Bore Diameter: 99.75mm (3.927 inches)
• Compression Distance: 1.209 inches
• Piston Top: Dish design for controlled compression ratios
• Construction: Forged aluminum alloy for maximum strength
• Application: Subaru EJ-series engines

Performance Features:

• Forged from premium aluminum alloy for superior strength-to-weight ratio
• Precision-machined to tight tolerances for optimal ring seal
• Dish design allows for custom compression tuning with different head gasket thicknesses
• Designed to handle high boost and extreme cylinder pressures
• Compatible with aftermarket connecting rods with 1.209-inch small end

Manley Performance pistons are manufactured in the USA and are trusted by professional engine builders and racers worldwide. Each piston set is designed for forced induction applications and can withstand the rigors of high-performance street and racing use. Proper ring gap setup and professional installation are recommended for optimal performance and longevity.