Manley 595430C-8 Forged Alloy Performance Engine Piston - 2618 Set

The Manley 595430C-8 is a high-performance forged engine piston set engineered for maximum power output and long-term durability. Machined from high-strength 2618 aluminum alloy, these pistons deliver exceptional fatigue resistance and high-temperature strength — making them ideal for forced induction, nitrous, and high-compression naturally aspirated applications.

Forging Material Options:

• 2618 Alloy: Maximum high-temperature strength and fatigue resistance for demanding performance builds.
• 4032 High Silicon Alloy: Available for budget-conscious street applications (49-series Ford Modular only).

Key Features:

• Contour forgings provide the optimum balance between strength and weight — no grain-interrupting internal milling.
• Proprietary multi-step top ring groove machining process ensures precise control of groove size, geometry, flatness, and finish.
• Single-fixturing final turning process guarantees complete ring-to-cylinder-wall squareness for maximum sealing and horsepower.
• Federal Form-Scan gauging validates ideal skirt indexing to pinhole and skirt-to-skirt polarity.
• Offset wrist pin design reduces cold-start noise and improves overall performance.
• Pressure balance groove included as standard on all series.
• Precise pinhole machining delivers exact compression distance and precise lock ring groove spacing, size, and concentricity.
• Moly-coated skirts standard on all Ford Modular pistons; optional on Chevy LS and Chrysler HEMI applications.

Included with Every Set:

• 1.5mm / 1.5mm / 3mm Total Seal ring package
• Roundwire locks
• Tool steel wrist pins
• Pressure balance grooves

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