Manley 619215CE-4 Platinum Series Forged Pistons 86.5mm Bore 94mm Stroke 156mm Rod

The Manley 619215CE-4 Platinum Series Lightweight Pistons are engineered for Mitsubishi 4G64 engines equipped with 4G63 7-bolt heads, as well as 2.1L stroker applications in 4G63T engines. This complete piston set delivers the performance and durability required for high-horsepower turbocharged builds.

Key Specifications:

• Bore Size: 86.5mm
• Stroke: 94mm (stroker application)
• Rod Length: 156mm
• Compression Ratio: 10:1 (DSM) / 10.5:1 (Evo)
• Dome Volume: -8cc dish design
• Piston Weight: 295 grams
• Wrist Pin: 22mm x 57.15mm chrome moly
• Compression Distance: 1.012 inches

Construction and Features:

• Forged from high-strength 2618 alloy for maximum temperature strength and fatigue resistance
• Contour forgings provide optimal strength-to-weight balance without grain-interrupting internal milling
• Offset wrist pin design for reduced piston slap and quiet startups
• Moly-coated skirts for reduced friction and wear
• Proprietary multi-step top ring groove machining ensures precise control of groove geometry and flatness
• Pressure balance groove for improved ring seal
• Single-operation fixturing guarantees perfect ring groove to skirt squareness for maximum horsepower

Complete Kit Includes:

• 4 premium steel top ring sets with Napier second rings
• 4 premium chrome moly wrist pins
• 4 round wire locks (spiral locks)

Manley Platinum Series pistons are trusted by professional engine builders and tuners worldwide for high-performance street, drag racing, and road racing applications. Recommended piston-to-wall clearance is 0.0035 inches measured 1.100 inches from the bottom of the oil ring groove.