Swift Springs Standard Conventional Front Spring - OD: 5.5" / Length: 9.5"

Swift Springs

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SKU: 950-550-325

Swift Springs Standard Conventional Front Spring - OD: 5.5" / Length: 9.5"

Sale price$119.85Regular price $141.00
In Stock

Fitment Notes

All fitment information on our website is provided by the manufacturer. It is the customer's responsibility to thoroughly read the product description and confirm fitment before placing an order and proceeding with installation.

Unless specified otherwise, all suspension products are designed for 2WD vehicles only. Any notes or descriptions related to electronic damping systems (EDC, DDS, etc.) apply strictly to vehicle fitment. Aftermarket coilovers are not compatible with OEM electronic damping control systems unless explicitly stated.

*Product images may not represent the actual SKU.

Handling Time

All handling times are estimates provided by the manufacturer and may change at any time. If the item is out of stock, we’ll promptly inform you of the estimated wait time and suggest similar in-stock alternatives if you prefer to change the order.

  • In stock: 1 business day
  • Out of stock: TBD

30-Day Returns

Orders can be returned within 30 days of fulfillment if all rules shown below are met.

  • Products must be in original packaging and in a new and resalable condition.
  • Any product that was used or fully/partially installed is non-returnable.
  • Custom products, special order products, and services are non-returnable and non-refundable.
  • Shipping fees and tax are non-refundable.
  • If the return of an item was caused by an error on our part, or a manufacturer's part, we will cover the shipping fees.

More Details

1-Year Manufacturer Warranty

Swift Springs offers a limited 1-year warranty on their metric coilover springs against defects in materials and workmanship. This warranty applies to springs that are properly installed and used under normal conditions. Swift Springs will repair or replace defective springs at their discretion.

Product Details

Swift Springs Standard Conventional Front Springs in 5.5" OD and 9.5" length are purpose-built for competitive oval track, stock car, and circle track racing applications. These 5.5" OD Swift front race springs are manufactured in Japan from proprietary H5S.TW high-tensile alloy steel, delivering measurably better traction, weight transfer, and tire temperature consistency compared to standard silicone chrome springs. With fewer coils and optimized winding, Swift conventional springs reduce unsprung mass and provide faster transient response, giving drivers a more predictable car through every phase of the corner.

Swift Springs has over 90 years of precision spring manufacturing experience, and their conventional race springs are specifically engineered for American oval track and circle track racing. Swift conventional springs deliver a noticeable performance difference over standard springs — providing increased traction, smoother weight transfer, lower tire temperatures, and a more predictable car through every phase of the corner. Bulletproof Series springs (part numbers ending in BP) are purpose-built for applications that put more stress on a spring than conventional use, developed specifically to meet the unique demands of circle track racers.

Why Racers Choose Swift Springs Conventional Springs

  • H5S.TW alloy steel provides superior fatigue life and rate consistency lap after lap
  • Fewer coils reduce unsprung weight for improved mechanical grip
  • Faster transient response for better traction on rough and worn track surfaces
  • Designed specifically for American oval track, stock car, and circle track racing
  • Lower tire temperatures through improved weight transfer characteristics
  • Swift Springs are made in Japan with precision grinding for even perch seating

Note: Swift Conventional Race Springs are sold individually. Select your desired spring rate from the options above.

PART # SPRING RATE USABLE STROKE MAX STROKE MAX LOAD
lbs/inch inch inch lbs
950-550-325 325 6.1 6.8 2,206
950-550-400 400 6.0 6.5 2,589
950-550-425 425 5.8 6.5 2,751
950-550-450 450 5.7 6.4 2,877
950-550-500 500 5.5 6.4 3,196
950-550-550 550 5.5 6.2 3,408
950-550-600 600 5.5 5.9 3,575
950-550-650 650 5.1 6.1 4,001
950-550-700 700 5.1 5.9 4,144
950-550-750 750 4.8 6.1 4,558
950-550-800 800 5.0 5.7 4,578
950-550-850 850 4.7 5.9 4,998
950-550-900 900 3.9 4.3 3,847
950-550-950 950 4.5 4,275
950-550-1000 1000 3.6 4.0 3,950
950-550-1050 1050 3.9 4.1 4,305
950-550-1050 1050 4.3 4,463
950-550-1100 1100 3.9 4.3 4,730
950-550-1150 1150 3.9 4.1 4,801
950-550-1200 1200 3.5 3.8 4,560

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