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-QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 450lbs/in - Flat Large - Aluminum-Coilovers-QA1
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QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 450lbs/in - Flat Large - Aluminum

QA1
QAPGS401-10450C
806990062161
Coilovers
6 Units In Stock - Ships Next Business Day
$ 830.83 $ 749.95
$ 749.95

SKU: GS401-10450C | UPC: 806990062161

QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 450lbs/in - Flat Large - Aluminum for 1973-1988 GM Vehicles

QA1 GS401-10450C front pro coil single adjustable stock mount shock kit delivers precise ride height and valving adjustments for 1973-1988 GM A/G-body vehicles including Chevrolet Malibu Monte Carlo El Camino Pontiac Grand Prix LeMans Buick Regal and more. Features compressed length of 8.63 inches extended length of 12.88 inches and 10-inch 450 lb/in high-travel spring with large tapered flat end. Lightweight aluminum design reduces unsprung weight for faster suspension response and improved handling in street driving autocross road racing or drag applications.

Key Features

  • Single Adjustable Valving: Tune compression and rebound damping to match driving style from street to track.
  • Fully Threaded Aluminum Body: Adjust ride height without disassembly for perfect stance and weight balance.
  • High Travel Springs: 10-inch 450 lb/in American-made springs with fewer coils smaller wire for increased travel and quick reaction.
  • Bolt-In Installation: Stock mounts ensure direct fit with no modifications required.
  • Dyno Tested Serialized: Each unit 100% tested for consistent performance rebuildable at QA1 service centers.

Product Notes

  • Sold in pairs for complete front suspension upgrade.
  • Made in USA with focus on drag racing street performance autocross road racing street rod use.
  • Lightweight construction optimizes handling across casual to hardcore applications.

Installation Notes

  • Professional installation recommended.
  • Bolt-in design uses factory stock mounts for straightforward setup.
  • Compatible with OEM hardware verify spring seat and perch alignment during install.

This Part Fits

Year Make Model Submodel
1973-1981 Chevrolet Malibu Base Classic Classic Estate
1973-1987 Chevrolet El Camino Base Custom SS Royal Knight Conquista
1973-1988 Chevrolet Monte Carlo Base S Sport SS Landau LS
1973-1976 Chevrolet Laguna Base Estate S3 Type S-3
1975-1979 Chevrolet Nova Base Concours Custom LN Police Rally SS
1973-1987 Pontiac Grand Prix Base Brougham LE LJ SJ
1973-1981 Pontiac LeMans Base Luxury Safari Sport
1973-1988 Buick Regal Base Custom Limited Sport T-Type Grand National GNX
1973-1977 Buick Century Base Custom Luxus Special
1973-1980 Oldsmobile Cutlass Base 442 S Vista Cruiser
1973-1977 GMC Sprint Base Custom Classic High Sierra SP
1981-1987 GMC Caballero Base Conquista Royal Knight Diablo Amarillo

Why Choose QA1?

  • Founded 1993 leader in rod ends spherical bearings suspension for motorsports.
  • 83000 sq ft manufacturing in Lakeville MN all American-made components.
  • Proven in circle track drag racing street performance with dyno validation.

Frequently Asked Questions

  • Q: Does this fit 1978 Chevrolet Monte Carlo SS?
    A: Yes fits 1973-1988 Monte Carlo models including Base S Sport SS Landau with stock front mounts.
  • Q: What material is the shock body?
    A: Lightweight billet aluminum construction reduces weight improves heat dissipation.
  • Q: What warranty coverage?
    A: Best-in-class QA1 warranty rebuildable at authorized service centers nationwide.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed pair with protective foam
  • Weight: 24 lbs

Request For Information

Have questions about QA1 GM Pro Front Coil-Over System - Single Adj. - 10in x 450lbs/in - Flat Large - Aluminum? Fill out the form below and we'll get back to you by the next business day.
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