Manley 597400C-8 High Performance Forged Engine Piston

The Manley 597400C-8 is a high-performance forged engine piston precision-machined from 2618 aluminum alloy for superior high-temperature strength and fatigue resistance. Engineered for maximum horsepower and durability, this lightweight yet robust piston features an advanced offset wrist pin design that reduces piston rock during startup for quieter operation and improved performance.

Key Features:

• 2618 aluminum alloy construction delivers exceptional strength-to-weight ratio and thermal stability under extreme conditions
• Contour forging process maintains uninterrupted grain structure for optimal strength without unnecessary weight
• Proprietary multi-step ring groove machining ensures precise geometry, flatness, and finish for superior ring seal
• Single-fixturing manufacturing method guarantees perfect ring groove to skirt squareness for maximum cylinder wall contact
• 1.5mm, 1.5mm, 3mm Total Seal ring package configuration optimizes compression and oil control
• Moly-coated skirts reduce friction and enhance scuff resistance
• Pressure balance groove included as standard for improved oil control and ring dynamics
• Federal Form-Scan gauging validates precise skirt indexing and polarity
• Offset wrist pin design minimizes piston slap and improves thrust load distribution

Complete Hardware Package Included:

• Tool steel wrist pins for superior durability
• Roundwire locks for secure pin retention
• Pressure balance grooves machined into every piston

Manley's precision pinhole machining delivers exact compression distance and perfectly concentric lock ring groove spacing. This piston represents decades of racing experience and engineering excellence, making it ideal for high-performance street, drag racing, road racing, and forced induction applications where reliability and power are paramount.

Note: Compression ratios are calculated at 0.00 deck clearance, 9.240 deck height, and 0.042-inch thick compressed head gasket.