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PAC Racing Springs
Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from traditional methods. Tapered wire has several advantages to the true chassis engineer and extreme racer looking for the next level of performance.

PAC Racing Springs Categories

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Cylinder Head Parts Kits
Pit Stop USA is The Online Motorsports Superstore! We feature Cylinder Head Parts Kits at low everyday prices.
Throttle Return Springs
There is no more important component on your race car than a reliable throttle return spring setup from PitStopUSA.com. We have a great selection of Throttle Return Spring Kits for all popular applications.
Valve Locks
Valve locks and retainers hold the retainer in place by using the force of the valve spring to hold the retainer and lock in place, not by the tang locking into the groove on the valve stem. In...More Details »
Valve Spring and Retainer Kits
PitStopUSA.com offers a variety of Valve Spring and Retainer Kits from the biggest brands in drag racing including Comp Cams Valve Spring and Retainer Kits, Crane Cams Valve Spring and Retainer...More Details »
Valve Spring Height Gauges
Valve Spring Height Gauges (also called valve spring height micrometers) are inserted over the valve, between the spring seat and retainer, as if they were springs. Their threaded members allow...More Details »
Valve Spring Locators
Pit Stop USA is The Online Motorsports Superstore! We feature Valve Spring Locators at low everyday prices.
Items 1-25 of 28

PAC Racing Springs Products

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Items 201-225 of 278
Description: Valve Spring, RPM Series, Single Spring / Damper, 540 lb/in Spring Rate, 1.115 in Coil Bind, 1.260 in OD, Set of 16
Item #: PACPAC-1201X
Condition: New
Limited Supply: Only 5 Left!
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Price: $396.00
Sale: $379.00
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Description: Valve Spring Shim, 0.015 / 0.020 / 0.030 / 0.050 in Thick, 1.500 in OD, 0.570 in ID, Steel, Kit
Item #: PACPAC-KS94
Condition: New
Limited Supply: Only 0 Left!
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Price: $156.00
Sale: $142.00
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Description: Valve Spring Shim, 0.015 / 0.020 / 0.030 / 0.050 in Thick, 1.500 in OD, 0.645 in ID, Steel, Kit
Item #: PACPAC-KS92
Condition: New
Limited Supply: Only 0 Left!
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Price: $156.00
Sale: $142.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.270 in OD, 0.570 in ID, 0.680 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S135
Condition: New
Limited Supply: Only 4 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.030 in Thick, 1.270 in OD, 0.510 in ID, 0.680 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S136
Condition: New
Limited Supply: Only 0 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Shim, 0.030 in Thick, 1.040 in OD, 0.615 in ID, Steel, Set of 16
Item #: PACPAC-S183
Condition: New
Limited Supply: Only 1 Left!
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Price: $47.00
Sale: $42.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.270 in OD, 0.520 in ID, 0.600 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S128
Condition: New
Limited Supply: Only 0 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.270 in OD, 0.520 in ID, 0.640 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S121
Condition: New
Limited Supply: Only 0 Left!
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Price: $93.00
Sale: $85.00
Save: 9%
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.270 in OD, 0.575 in ID, 0.870 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S111
Condition: New
Limited Supply: Only 5 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.450 in OD, 0.570 in ID, 0.980 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S112
Condition: New
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.450 in OD, 0.630 in ID, 0.980 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S113
Condition: New
Limited Supply: Only 2 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.030 in Thick, 1.500 in OD, 0.570 in ID, 0.715 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S134
Condition: New
Limited Supply: Only 9 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.500 in OD, 0.570 in ID, 0.715 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S110
Condition: New
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.500 in OD, 0.630 in ID, 0.715 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S126
Condition: New
Limited Supply: Only 3 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.030 in Thick, 1.500 in OD, 0.630 in ID, 0.715 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S127
Condition: New
Limited Supply: Only 1 Left!
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Price: $93.00
Sale: $85.00
Save: 9%
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.550 in OD, 0.575 in ID, 0.770 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S103
Condition: New
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Price: $93.00
Sale: $85.00
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Save: $8.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.550 in OD, 0.575 in ID, 0.800 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S119
Condition: New
Limited Supply: Only 5 Left!
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Price: $93.00
Sale: $85.00
Save: 9%
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.270 in OD, 0.520 in ID, 0.680 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S129
Condition: New
Limited Supply: Only 0 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $85.00
Save: 9%
Save: $8.00
Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.550 in OD, 0.575 in ID, 0.700 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S105
Condition: New
Limited Supply: Only 8 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.550 in OD, 0.575 in ID, 0.855 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S101
Condition: New
Limited Supply: Only 8 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $85.00
Save: 9%
Save: $8.00
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Description: Valve Spring Locator, Inside, 0.060 in Thick, 1.650 in OD, 0.570 in ID, 0.630 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S109
Condition: New
Limited Supply: Only 3 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $85.00
Save: 9%
Save: $8.00
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Description: Valve Spring Locator, Inside, 0.030 in Thick, 1.650 in OD, 0.570 in ID, 0.630 in Spring ID, Chromoly, Set of 16
Item #: PACPAC-S133
Condition: New
Limited Supply: Only 6 Left!
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Price: $93.00
Sale: $85.00
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Description: Valve Lock, 7 Degree, 7 mm Valve Stem, Standard Height, 3 Radius Groove, Steel, Natural, Set of 32
Item #: PACPAC-L8086
Condition: New
Limited Supply: Only 1 Left!
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Price: $93.00
Sale: $88.00
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Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.920 in / 0.650 in OD Steps, 1.280 in Dual Spring, Chromoly, GM LS-Series, Set of 16
Item #: PACPAC-R355
Condition: New
Limited Supply: Only 0 Left!
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Price: $93.00
Sale: $88.00
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Description: Valve Spring Retainer, 300 Series, 8 Degree, 0.775 in OD Step, Single Spring, Chromoly, Set of 16
Item #: PACPAC-R349
Condition: New
Limited Supply: Only 4 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $88.00
Save: 5%
Save: $5.00
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Items 201-225 of 278

More About PAC Racing Springs

Traditional Springs are made from the same size (Diameter) wire throughout the helix of the spring. PAC Racing Springs has partnered with technology leaders in order to provide this advanced new tapered wire product. Tapered wire allows for a true progressive and dual rate without reducing spring travel and increasing weight from traditional methods. Tapered wire has several advantages to the true chassis engineer and extreme racer looking for the next level of performance.

PAC Racing Springs pioneered high travel suspension springs when post race tech began disqualifying winning cars from too low of ride height, a result from spring sag and poor designs. We answered the demand using cutting edge materials and processing, thus reducing cost over expensive and ineffective aerospace alloys typically used. This innovative method provides superior spring construction and performance reducing cost drastically over competition. PAC Racing is capable of using our in house Servo Hydraulic single post MTS to duplicate the rigors of racing, every bump, every turn, which allows improvement to the design continuously.

Technology

The Primary focus of the Peterson Spring group is Automotive and Industrial applications, these interactions increase technical advancements for PAC Racing Spring products. We can offer enhanced technology through engineering resources and expanded experience from all of our power-train engineers. Additionally with nearly 100 years of manufacturing experience we continually improve our products to exceed demanding expectations.

Testing

Because of the extreme demands of racing, we routinely test all of our components using advanced testing technology. We have a fully accredited metallurgy lab with dedicated staff and equipment such as: SEM with EDAX, Xray Diffraction, Micro Hardness, Impact Testing, and MTS Tensile Test machine. Additionally, we are able to test functionality and fatigue properties in our Dyanamics Laboratory, which includes a single post MTS Servo Hydraulic test machine, various bench type equipment, and our High Tech Engine test lab. Whatever your application we strive to bring confidence that our products meet and exceed designed parameters.

PAC Racing Springs, based in Detroit, MI, is the Racing and Aftermarket Division of the Peterson Spring Company. With more than 10 divisions around the world, Peterson Spring is the largest privately held, family owned Spring Company in the USA. With nearly 100 years of operation, Peterson Spring proudly manufactures all the Racing and Aftermarket components in Detroit, Michigan.