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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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2-1/2" x 10" Coil-over Springs
Manufactures of 2-1/2" inside diameter by 10" Tall springs include Afco, Eibach, Hypercoils, Integra, Landrum, QA1, and Suspension Spring Specialist
Bump Spring Cups
For use with coil springs made specifically for bump stop applications.
Cylinder Head Parts Kits
Pit Stop USA is The Online Motorsports Superstore! We feature Cylinder Head Parts Kits at low everyday prices.
Mini Sprint Torsion Bars
Pit Stop USA is The Online Motorsports Superstore! We feature Mini Sprint Torsion Bars, Micro Sprint Torsion Bars and more at low everyday prices.
PAC 2-1/2" I.D. x 10" Tall
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...More Details »
Sway Bars - NEW
Check out the Recently Listed Sway Bars.
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.
Items 1-25 of 32

PAC Racing Springs Products

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Items 26-50 of 243
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 4 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $385.00
Sale: $352.00
Save: 9%
Save: $33.00

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Description: Sway Bar, Gun Drilled, 1-3/8 in Diameter, 1-1/4 in 49 Spline, Steel, Natural, Universal, Each
Item #: PACPAC-SB-P49-137-37.5Q
Condition: New
Limited Supply: Only 0 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $259.99
Sale: $256.96
Save: 1%
Save: $3.03

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 9 Left!
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Ships from Michigan.
Price: $100.00
Sale: $92.00
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Save: $8.00
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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 9 Left!
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Ships from Michigan.
Price: $100.00
Sale: $92.00
Save: 8%
Save: $8.00
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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 6 Left!
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Ships from Michigan.
Price: $100.00
Sale: $92.00
Save: 8%
Save: $8.00
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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
Limited Supply: Only 6 Left!
Same Day Shipping!
Ships from Michigan.
Price: $100.00
Sale: $92.00
Save: 8%
Save: $8.00
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Description: Valve Spring, 1200 Series, Dual Spring, 610 lb/in Spring Rate, 1.115 in Coil Bind, 1.260 in OD, Set of 16
Item #: PACPAC-1203
Condition: New
Limited Supply: Only 3 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $305.00
Sale: $278.00
Save: 9%
Save: $27.00

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Description: Valve Spring, 1200 Series, Single Spring / Damper, 350 lb/in Spring Rate, 1.048 in Coil Bind, 1.260 in OD, Set of 16
Item #: PACPAC-1216
Condition: New
Limited Supply: Only 7 Left!
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FREE SHIPPING! Ships from Michigan
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Price: $255.00
Sale: $198.00
Save: 22%
Save: $57.00
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Description: Valve Spring, RPM Series, Dual Spring, 550 lb/in Spring Rate, 1.045 in Coil Bind, 1.274 in OD, GM LS-Series, Set of 16
Item #: PACPAC-1237X
Condition: New
Limited Supply: Only 2 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $455.00
Sale: $416.00
Save: 9%
Save: $39.00

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Description: Valve Spring, 1200 Series, Ovate Beehive Spring, 285 lb/in Spring Rate, 1.181 in Coil Bind, 1.282 in OD, Set of 16
Item #: PACPAC-1280X
Condition: New
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Price: $235.00
Sale: $212.00
Save: 10%
Save: $23.00
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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 4 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $345.00
Sale: $315.00
Save: 9%
Save: $30.00

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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 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
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Price: $455.00
Sale: $415.00
Save: 9%
Save: $40.00

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 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
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Price: $560.00
Sale: $515.00
Save: 8%
Save: $45.00

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 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $455.00
Sale: $415.00
Save: 9%
Save: $40.00

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 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
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Price: $560.00
Sale: $515.00
Save: 8%
Save: $45.00

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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
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $560.00
Sale: $515.00
Save: 8%
Save: $45.00

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Description: Valve Spring Height Gauge, 1.400-1.900 in Range, 1.200 in ID, 0.050 in Per Turn, Orange Anodize, Each
Item #: PACPAC-T903
Condition: New
Limited Supply: Only 6 Left!
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FREE SHIPPING! Ships from Michigan.
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Price: $200.00
Sale: $165.00
Save: 18%
Save: $35.00
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Description: Valve Spring Height Gauge, 1.400-2.000 in Range, 0.001 in Scale, Blue Anodize, Beehive Springs, Each
Item #: PACPAC-T901
Condition: New
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $200.00
Sale: $165.00
Save: 18%
Save: $35.00
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Description: Valve Spring Height Gauge, 1.400-2.000 in Range, 0.001 in Scale, Blue Anodize, LS Dual Springs, Each
Item #: PACPAC-T904
Condition: New
Limited Supply: Only 7 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $200.00
Sale: $165.00
Save: 18%
Save: $35.00
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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 0 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $455.00
Sale: $415.00
Save: 9%
Save: $40.00

Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.125 in / 0.800 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R536
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $560.00
Sale: $515.00
Save: 8%
Save: $45.00

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Description: Valve Spring Retainer, 400 Series, 10 Degree, 1.090 in / 0.780 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R405
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $345.00
Sale: $315.00
Save: 9%
Save: $30.00

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Description: Valve Spring Retainer, 600 Series, 10 Degree, 1.110 in / 0.710 in OD Steps, Dual Spring, Steel, Set of 16
Item #: PACPAC-R615
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $455.00
Sale: $415.00
Save: 9%
Save: $40.00

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Description: Valve Spring Retainer, 300 Series, 10 Degree, 1.110 in / 0.710 in OD Steps, Dual Spring, Chromoly, Set of 16
Item #: PACPAC-R315
Condition: New
Limited Supply: Only 3 Left!
Same Day Shipping!
Ships from Michigan.
Price: $100.00
Sale: $92.00
Save: 8%
Save: $8.00
Qty:

Description: Valve Spring Retainer, 500 Series, 10 Degree, 1.140 in / 0.735 in OD Steps, Dual Spring, Titanium, Set of 16
Item #: PACPAC-R514
Condition: New
Limited Supply: Only 1 Left!
Same Day Shipping!
FREE SHIPPING! Ships from Michigan.
Free Ground Shipping
Price: $560.00
Sale: $515.00
Save: 8%
Save: $45.00

Qty:

Items 26-50 of 243

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.