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PAC 1200 Series Drag Race Valve Springs
The world's premier valve spring manufacturer. NASCAR, Drag Racing, F1, Rally, and Sprint Cars to everyday street performance engines use PAC Racing Products to provide unsurpassed performance in all forms of Motor sports. Innovative designs produced by skilled spring makers from the highest quality materials ensure the highest performing valve springs available. Sets of 16.
Part Type: PAC Roller Valve Springs
Style: 1200 Series
Type: Dual
Damper Included: No
Outer Spring Out Side Diameter (O.D.): 1.550"
Outer Spring In Side Diameter (I.D.): 1.100"
Inner Spring Out Side Diameter (O.D.): NA
Inner Spring In Side Diameter (I.D.): .788"
Seat Pressure: 250 @ 2.000"
Open Pressure: 765 @ 1.200"
Valve Spring Rate: 644
Maximum Suggested Lift: .800"
Coil Bind: 1.150"
Electro Polished: No
Nitrided: No
Suggested Steel Retainers: 3800
Suggested Titanium Retainers: 3450
Suggested Seat Cups: NA
Suggested Locators: NA
Manufacturer: PAC Racing Springs
Manufacturer's Part Number: PAC-1225
Packaged Weight: 3.0 lbs.
Warranty: Race Application, No warranty expressed or implied
Quantity: Sold in Sets of 16
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