DSS Racing 1-5000-4080 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)
• Ring Set Required: RS-DM400-4080
• Ring Series: DM400
• Fits Base Engine: 390
• Compression Ratio: 65cc-11.32, 72cc-10.48, 76cc-10.06
• Calculated Zero Deck: 10.156
• Compression Height: 1.775 in.
• Rod Length: 6.489 in.
• Stroke: 3.784 in. (OEM Stroke)
• Pin Locking Rings Included: Yes
• Wrist Pin Included: Yes
• Oil Rail Support Ring Included: N/A
• With Rings Without Rings: Without Rings
• Total Valve Reliefs: 2