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PAC 1200 Series Circle Track Springs

The PAC 1200 Series Circle Track Springs fit a wide variety of applications. Some of the Dual Valve Springs work very well for Street / Strip Applications with a Solid Roller Camshaft. The higher seat pressure lets you run a more aggressive camshaft profile while a modest spring rate keeps from wearing out lifters and other valve train parts.

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PAC-1200 - 1200 Series Circle Track Endurance Single Valve Spring Set - 1.244" OD, 125bs @ 1.750", 450 lbs/in Spring Rate, .550" Max Lift
Price: $235.00 Quantity: * Whole number only
Small Diameter Spring designed to fit the stock spring pocket without machining. Single Spring with Damper.

PAC-1201 - 1200 Series Circle Track Endurance Single Valve Spring Set - 1.260" OD, 140bs @ 1.750", 540 lbs/in Spring Rate, .550" Max Lift
Price: $235.00 Quantity: * Whole number only
Small Diameter Spring designed to fit the stock SBC spring pocket without machining. Single Spring with Damper. Higher Spring rate for aggressive cams. .550" Max Lift


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PAC 1200 Series Circle Track Springs

PAC-1200 - 1200 Series Circle Track Endurance Single Valve Spring Set - 1.244" OD, 125bs @ 1.750", 450 lbs/in Spring Rate, .550" Max Lift

PAC-1201 - 1200 Series Circle Track Endurance Single Valve Spring Set - 1.260" OD, 140bs @ 1.750", 540 lbs/in Spring Rate, .550" Max Lift