PAC Racing PAC-1243-16 Circle Track Valve Springs 1.550 OD

PAC Racing designed these PAC-1243-16 Valve Springs for Circle Track racing applications. These 1200 Series springs are manufactured from a premium alloy that outperforms automotive industry standards. PAC Racing processes these springs to aerospace shot-peening standards to allow for superior fatigue performance.

PAC Racing's proprietary process ensures that these valve springs will withstand the rigors of street performance and mild racing applications.

PAC Racing PAC-1243-16 Valve Springs Specs:

• Number of Springs Per Valve: Dual
  
• Valve Spring Style: Standard
• Maximum Valve Lift: 0.700 in.
• Outside Diameter: 1.550 in.
• Outer Spring ID: 1.136 in.
• Middle Spring ID: N/A
• Inner Spring ID: 0.812 in.
• Installed Height: 1.900 in.
• Coil Bind Height: 1.053 in.
• Spring Rate: 550 lbs./in.
• Spring Open Height: 1.200 in.
• Spring Open Load: 625 lbs.
• Load At Installed Height: 240 lbs.
• Damper Spring Included: No
  
• Retainers Included: No
• Valve Springs Coated: No
• Valve Stem Seals Included: No
• Locks Included: No
• Quantity: Sold as a set of 16

PAC: The World’s Premier Valve Spring Manufacturer!