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Vivid Racing Gear 
Features:
- Built using our signature PACaloy super clean wire to ensure strength and durability
- In-house heat-treating for precise spring rates and increased strength
- Multi-peen process to optimize service life
- Polishing to improve operating cycles
- Nano-Peen™ proprietary surface treatment
Specifications:
- Outer Diameter - Outer Valve Spring: 1.274 IN
- Inner Diameter - Outer Valve Spring: 0.900 IN
- Inner Diameter - Inner Valve Spring: 0.630 IN
- Installed Height: 1.800 IN
- Installed Load / Height (Valve Closed): 250 LB @ 1.800 IN
- Open Height: 1.050 IN
- Open Load: 700 PS
- Open Load / Height (Valve Open): 700 LB @ 1.050 IN
- Valve Spring Rate: 600 PS
- Max Coil Bind: 0.985 IN
- Max Valve Lift: 0.750 IN
- Recommended Valve Spring Retainer - 400 Series: R432
- Recommended Valve Spring Retainer - 500 Series: R532
- Recommended Valve Spring Retainer - 600 Series: R632
- Recommended Valve Spring Seat: S128, S138
- Valve Spring Series: RPM Series
- Valve Spring Type: Dual
- Primary Market: Drag Race|Street Performance
Other Part Numbers:
Pac Racing Springs #PACPAC-1238X
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
PAC Racing Springs is a brand that is the aftermarket and racing division of the Peterson Spring Company. As the world’s esteemed spring manufacturer, Peterson Spring is the largest privately held, family-owned Spring Company in the USA. The company has been in the business for more than 100 years and continuously provides its customers with the parts they deserve.
Choice Of RacersPAC Racing Spring focuses on providing quality parts for the racing industry. This industry is one of the most demanding sectors in the automotive world as it requires parts that exceed expectations. When racing, each component is subjected to extreme forces, requiring stronger and more reliable parts than standard.
It is where PAC Racing comes in. Their springs are considered the best in the market and are used by dozens of racers and racing teams everywhere.
By listening to the demands and feedbacks of their customers, the company can create springs that exceed expectations. PAC Racing can produce springs that help racers win races and championships using the latest technology and manufacturing tools available.
Hightech Manufacturing And Testing CentersEach product undergoes a rigorous testing process using the most advanced technology in the market. The company has a fully equipped metallurgy lab with SEM with EDAX, Micro Hardness X-ray Diffraction, Impact Testing and MTS Tensile Test machine.
They also have a Dynamics Laboratory, which includes a single post-MTS Servo Hydraulic test machine, various bench type equipment that tests the fatigue of their products. This level of attention has made them one of the best high permanence spring manufacturers in the industry.
Purchase PAC Racing Products at Vivid RacingIf you are in the market for high-quality springs that would improve the way your vehicle handle, then look no further as PAC Racing has got you covered. To know more about the company and what they can offer, visit Vivid Racing and check out their list of products that fit your specific need.
| Sale price | None |
| Wholesale price | $30.62 |
| Shipping |
Weight: 4.00 Length: ? Width: ? Height: ? |
| Product Added At | Thursday 07 May, 2020 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | vendordata@vividracing.com |
| View In Admin |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Motorstate Distributing | $25.95 | $31.84 | $31.84 | $31.84 | ? | 2025-07-11 15:44:50 |
