PAC Racing PAC-1238X-16 RPM Valve Springs 1.274 OD

PAC Racing designed these PAC-1238X-16 Valve Springs for Race Only applications. These RPM Series springs were developed to allow for performance increases that exceed all demands. They 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 high performance and racing applications.

PAC Racing PAC-1238X-16 Valve Springs Specs:

• Number of Springs Per Valve: Dual
  
• Valve Spring Style: Standard
• Maximum Valve Lift: 0.750 in.
• Outside Diameter: 1.274 in.
• Outer Spring ID: 0.900 in.
• Middle Spring ID: N/A
• Inner Spring ID: 0.630 in.
• Installed Height: 1.800 in.
• Coil Bind Height: 0.985 in.
• Spring Rate: 600 lbs./in.
• Spring Open Height: 1.050 in.
• Spring Open Load: 700 lbs.
• Load At Installed Height: 250 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!