Specifications

• Part# PAC-1561
• Name PAC-1561 Circle Track Dual
• SKU PAC-1561
• Alt Part# PAC-1561-16
• Description Circle Track 1500 Series Valve Spring 1.514 Dual - nitrided Nano-Peen
• Outside Diameter 1.514
• Outer Spring ID 1.100
• Middle Spring ID N/A
• Damper No
• Inner Spring ID 0.804
• Install Height 2.000
• Load at Installed Height 250
• Spring Open Height 1.200
• Spring Open Load 636
• Recommended Valve Lift 0.800
• Spring Rate (lbs/in) 483
• Mass (grams) 141
• Coil Bind (max) 1.155