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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.

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Items 1-25 of 55
Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.940 in / 0.680 in OD Steps, Dual Spring, Chromoly, Set of 16
Item #: PACPAC-R335
Condition: New
Limited Supply: Only 6 Left!
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Price: $93.00
Sale: $88.00
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Description: Valve Spring Retainer, 300 Series, 10 Degree, 0.990 in / 0.700 in OD Steps, 1.374 in Dual Spring, Chromoly, Set of 16
Item #: PACPAC-R317
Condition: New
Limited Supply: Only 6 Left!
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Price: $93.00
Sale: $88.00
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Description: Valve Spring Retainer, 400 Series, 10 Degree, 1.125 in / 0.800 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R436
Condition: New
Limited Supply: Only 5 Left!
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Price: $317.00
Sale: $295.00
Save: 7%
Save: $22.00

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Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.140 in / 0.815 in OD Steps, 1.475 in OD Dual Spring, Titanium, Set of 16
Item #: PACPAC-R538
Condition: New
Limited Supply: Only 0 Left!
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Price: $502.00
Sale: $460.00
Save: 8%
Save: $42.00

Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.185 in / 0.865 in / 0.635 in OD Steps, Triple Spring, Titanium, Each
Item #: PACPAC-R501-1
Condition: New
Limited Supply: Only 1 Left!
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Price: $32.32
Sale: $29.90
Save: 7%
Save: $2.42
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Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.040 in / 0.715 in OD Steps, Dual Spring, Titanium, Each
Item #: PACPAC-R508-1
Condition: New
Limited Supply: Only 7 Left!
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Price: $32.32
Sale: $29.90
Save: 7%
Save: $2.42
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Description: Valve Spring Retainer, 500 Series, 8 Degree, 1.040 in / 0.715 in OD Steps, Dual Spring, Titanium, Each
Item #: PACPAC-R509-1
Condition: New
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Price: $32.32
Sale: $29.90
Save: 7%
Save: $2.42
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Description: Valve Spring Retainer, 600 Series, Mini 8 Degree, 0.890 in / 0.600 in OD Steps, Dual Spring, Steel, Each
Item #: PACPAC-R632-1
Condition: New
Limited Supply: Only 7 Left!
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Price: $26.78
Sale: $25.68
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Save: $1.10
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Description: Valve Spring Retainer, 600 Series, Mini 8 Degree, 0.890 in / 0.600 in OD Steps, Dual Spring, Steel, Set of 16
Item #: PACPAC-R632
Condition: New
Limited Supply: Only 4 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Description: Valve Spring Retainer, 600 Series, 8 Degree, 0.775 in OD Step, 1.200 in OD Dual Spring, Steel, Set of 16
Item #: PACPAC-R649
Condition: New
Limited Supply: Only 2 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Description: Valve Spring Retainer, 600 Series, 8 Degree, 1.120 in / 0.715 in OD Steps, 1.575 in Dual Spring, Steel, Black Oxide, Set of 16
Item #: PACPAC-R658
Condition: New
Limited Supply: Only 2 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.640 in OD Step, Beehive Spring, Chromoly, Set of 16
Item #: PACPAC-R333
Condition: New
Limited Supply: Only 1 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $88.00
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Save: $5.00
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Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.570 in OD Step, Beehive Spring, Chromoly, Ford Modular, Set of 16
Item #: PACPAC-R312
Condition: New
Limited Supply: Only 3 Left!
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Price: $93.00
Sale: $88.00
Save: 5%
Save: $5.00
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Description: Valve Spring Retainer, 500 Series, 10 Degree, 0.640 in OD Step, Beehive Spring, Titanium, Set of 16
Item #: PACPAC-R510
Condition: New
Limited Supply: Only 6 Left!
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Price: $350.00
Sale: $295.00
Save: 16%
Save: $55.00

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Description: Valve Spring Retainer, 300 Series, 10 Degree, 0.640 in OD Step, Beehive Spring, Chromoly, Set of 16
Item #: PACPAC-R310
Condition: New
Limited Supply: Only 8 Left!
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Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $88.00
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Save: $5.00
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Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.640 in OD Step, Beehive Spring, Chromoly, GM LS-Series, Set of 16
Item #: PACPAC-R311
Condition: New
Limited Supply: Only 0 Left!
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $88.00
Save: 5%
Save: $5.00
Description: Valve Spring Retainer, 300 Series, 10 Degree, 0.721 in OD Step, Beehive Spring, Chromoly, Set of 16
Item #: PACPAC-R313
Condition: New
Limited Supply: Only 8 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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Description: Valve Spring Retainer, 300 Series, 7 Degree, 0.850 in / 0.600 in OD Steps, Dual Spring, Chromoly, Set of 16
Item #: PACPAC-R334
Condition: New
Same Day Shipping!
Orders over $149 ship free. Oversize items are excluded.
Price: $93.00
Sale: $88.00
Save: 5%
Save: $5.00
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Description: Valve Spring Retainer, 400 Series, 7 Degree, 0.940 in / 0.680 in OD Steps, Dual Spring, Titanium, GM LS-Series, Set of 16
Item #: PACPAC-R435
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
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Price: $317.00
Sale: $295.00
Save: 7%
Save: $22.00

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Description: Valve Spring Retainer, 600 Series, 10 Degree, 1.040 in / 0.715 in OD Steps, Dual Spring, Steel, Set of 16
Item #: PACPAC-R608
Condition: New
Limited Supply: Only 2 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.040 in / 0.715 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R508
Condition: New
Limited Supply: Only 7 Left!
Same Day Shipping!
FREE SHIPPING!
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Price: $502.00
Sale: $460.00
Save: 8%
Save: $42.00

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Description: Valve Spring Retainer, 600 Series, 10 Degree, 1.090 in / 0.695 in OD Steps, Dual Spring, Steel, Set of 16
Item #: PACPAC-R606
Condition: New
Limited Supply: Only 5 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.090 in / 0.695 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R506
Condition: New
Limited Supply: Only 3 Left!
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Price: $502.00
Sale: $460.00
Save: 8%
Save: $42.00

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Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.090 in / 0.780 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R505
Condition: New
Limited Supply: Only 5 Left!
Same Day Shipping!
FREE SHIPPING!
Free Ground Shipping
Price: $502.00
Sale: $460.00
Save: 8%
Save: $42.00

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Description: Valve Spring Retainer, 600 Series, 10 Degree, 1.140 in / 0.735 in OD Steps, Dual Spring, Steel, Set of 16
Item #: PACPAC-R614
Condition: New
Limited Supply: Only 1 Left!
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Price: $416.00
Sale: $395.00
Save: 5%
Save: $21.00

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Items 1-25 of 55

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.