JE Pistons 298946S Forged Piston 2618 Alloy Inverted Dome/Dish 3.386" Bore Single

The JE Pistons 298946S is a single forged racing piston engineered from 2618 aluminum alloy, featuring an inverted dome/dish crown design. With a 3.386-inch bore diameter, a 1.181-inch compression distance (CD), and a 0.866-inch pin diameter, this piston is precision-manufactured to exacting tolerances for high-performance and racing applications.

Key Features:

• 2618 Forged Aluminum Alloy — A high-strength alloy preferred for boosted, nitrous, and extreme-heat applications due to its superior ductility and thermal fatigue resistance
• Inverted Dome/Dish Crown — Optimized combustion chamber geometry for precise compression ratio tuning
• 3.386" Bore Diameter — Precision-sized for a specific engine application
• 1.181" Compression Distance (CD) — The measurement from the center of the pin bore to the top of the piston, critical for proper deck height setup
• 0.866" Wrist Pin Diameter — Heavy-duty pin bore for strength and reduced reciprocating mass
• In-House Forging — JE manufactures pistons in their own facility, ensuring consistent quality and tight dimensional tolerances

JE Pistons has been an industry leader in forged performance pistons for over 70 years. Trusted by professional race teams across drag racing, road racing, off-road, and engine building, JE combines proprietary alloy selection, CNC machining, and advanced coating technologies to deliver pistons that perform under the most demanding conditions. The 2618 alloy used in this piston is the preferred choice for forced induction and high-output builds where durability under thermal stress is critical.