• Valve Angle: 15-degree
• Combustion Chamber: 70cc*
• Intake Port Volume: 275cc*
• Exhaust port Volume: 99cc*
• Minimum Cylinder Bore Required: 4.000"

Milling Information for Combustion Chamber Sizing:

• - Approximately 0.006 per 1-cc
• For 68-cc Chamber Remove 0.012
• For 65-cc Chamber Remove 0.030

Specifications:

• Max Lift: 0.650"
• Valve Springs: SDPC Exclusive HP Beehive made by PAC Springs
• Locks: 7-degree
• Retainers: Titanium
• Valves: Ferrea Stainless Steel 2.160"/1.590"

Lift Int Exh

• .100" 70cfm 52cfm
• .200" 153cfm 118cfm
• .300" 225cfm 180cfm
• .400" 280cfm 201cfm
• .500" 324cfm 217cfm
• .600" 350cfm 230cfm
• .650" 358cfm 236cfm

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