Manley 594020C-8 Forged Flat Top Pistons 3.572" Bore 2618 Alloy 8-Pack

The Manley 594020C-8 forged piston set delivers professional-grade performance for demanding engine builds. Machined from high-strength 2618 aluminum alloy, these flat top pistons are engineered to withstand extreme temperatures and heavy loads while maintaining optimal weight for responsive performance.

Specifications:

• Bore: 3.572 inches
• Compression Distance: 1.220 inches
• Rod Length: 6.657 inches
• Stroke: 4.165 inches
• Compression Ratios: 11.09:1 @ 42cc, 9.91:1 @ 51cc, 9.79:1 @ 52cc
• Piston Weight: 345 grams (433 grams with pin)
• Ring Package: 1.5mm, 1.5mm, 3mm Total Seal

Premium Features:

• 2618 aluminum alloy forging provides superior high-temperature strength and fatigue resistance compared to hypereutectic castings
• Contour forged design optimizes strength-to-weight ratio without grain-interrupting internal milling
• Single-fixturing manufacturing ensures perfect ring groove to skirt squareness for maximum cylinder seal and horsepower
• Proprietary multi-step top ring groove machining delivers precise geometry, flatness, and surface finish
• Offset wrist pin design reduces piston rock for quieter cold starts and improved performance
• Moly-coated skirts reduce friction and scuffing during break-in and operation
• Federal Form-Scan gauging validates optimal skirt indexing and polarity
• Pressure balance grooves improve ring seal and oil control

Included Components:

• Tool steel wrist pins
• Round wire locks
• Pressure balance grooves

Note: Compression ratios calculated at zero deck clearance, 9.240-inch deck height, and 0.042-inch compressed head gasket thickness. Verify all dimensions against your specific engine build requirements.