DSS Racing K1-6020-4060D Features:

• 6 additional areas of CNC milling for weight reduction in non critical areas
• Thinner Ring Grooves Maximize Critical Ring Land Strength
• Larger CNC Machined Valve Reliefs for More Aggressive Head & Cam Combinations
• Heavy-Duty Piston Pins
• Double True Arc Pin Locks, Provide Redundancy
• Precision CNC Finished Pin Bores
• Drilled Forced Wrist Pin Oiling
• Drilled Bottom Ring Land Intersecting Oil Drain Backs
• Advanced Profile Precision Diamond-Turned Skirts
• Boost and NOS Ready! (Moderate to High Levels)
• Includes matching DSS Racing Ductile Moly ring set.
• Ring Set Required: RS-DM400-4060
• Ring Series: DM400
• Fits Base Engine: 425
• Compression Ratio: 72cc-10.13, 75cc-9.84, 77cc-9.66
• Calculated Zero Deck: 10.6125
• Compression Height: 1.625 in.
• Rod Length: 7 in.
• Stroke: 3.975 in. (OEM Stroke)
• Pin Locking Rings Included: Yes
• Wrist Pin Included: Yes
• Oil Rail Support Ring Included: N/A
• With Rings Without Rings: With Rings
• Total Valve Reliefs: 2