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QA1 64-67 A-Body/55-57 Chevy Front Coilover Kit
QA1 64-67 A-Body/55-57 Chevy Front Coilover Kit

QA1 64-67 A-Body/55-57 Chevy Front Coilover Kit

Gran Sport, Skylark, Bel Air, Chevelle, Malibu, 442, Cutlass, GTO, LeMans, Del Ray

10 Reviews | 16 Answered Questions
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QA1 64-67 A-Body/55-57 Chevy Front Coilover Kit
QA1 64-67 A-Body/55-57 Chevy Front Coilover Kit
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Part # 72146731
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What's In The Kit
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  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.

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Item 1 of 1
QA1 GMP Coil-Over Spring
QA1 GMP Coil-Over Spring
Quantity: 2
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Shock Body Material:
Upper Shock Mount:
Lower Shock Mount:
Tie Bar
Compressed Length:
Extended Length:
Compressed Length Range:
10.00" to 10.99"
Extended Length Range:
15.00" to 15.99"
Powder Coated
Sold in Quantity:


Don't you wish you had adjustable coil-overs on the front of your classic car to vary the ride height and road feel? This QA1 Pro Coil Adjustable Front Coil-Over Conversion Kit will do just that for you. You get two adjustable coilover shock assemblies that have a single knob with 18 valving options and two coil springs.

  • Easy Bolt-In Installation
    • Minimal modifications to be made
    • Remove the existing shocks and springs and the QA1 Pro Coil System bolts right back in.
  • Specialty Designed Conical Springs
    • Springs designed so that the lower end sits on the coil-over shock and the upper end sets in the original spring bucket in the frame
    • Allows for a longer, lighter spring for more stored energy, offering increased weight transfer
    • Greater durability by locating the spring pressure in the frame and not on a single stud
  • Ride Height Adjustable
    • Threaded aluminum body allows easy ride height adjustment
  • QA1 Pro Coil shocks are revalveable and rebuildable by QA1 Authorized Service Centers

Choose 350 lb., 450lb. or 550 lb. rate springs.




  • 1964-67 Chevelle/Malibu
  • 1964-67 442/Cutlass
  • 1964-67 GTO/Lemans
  • 1964-67 GS/Skylark
  • 1955-57 Chevy


   Spring Rate         Front End Weight

  • 350¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 1701-1800 lb.
  • 400¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 1801-1900 lb.¬†
  • 450¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 1901-2000 lb.
  • 500¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 2001-2100 lb.
  • 550¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†2101-2200 lb.
  • 600¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 2201-2300 lb.
  • 650¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬†¬† 2301-2400 lb.

Most Small Blocks have a total front end weight of 1700-1950 lbs. Most Big Blocks have a total front end weight of 1951-2200 lbs. If equipped with Air Conditioning, add 75 lbs.

* Approximate figures, not exact.


  • Comp. Length: 10.5"
  • Ext. Length: 15"
  • Upper Mount: Stud
  • Lower Mount: T-Bar
  • Spring Free Length: 10"
  • Spring Upper I.D.: 3.50"
  • Spring Lower I.D.: 2.50"
  • Spring Style: Pigtail
  • Spring Finish: Powder Coated, Chrome Appearing
Some parts are not legal for use in California or other states with similar laws/regulations

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What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • QA1 Adjustable Pro-Coil Shock
    Qty x 2
  • QA1 GMP Coil-Over Spring
    Qty x 2

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Q & A

  • In this episode, Project Chevelle gets coilovers and a much-needed altitude adjustment. Watch as we install QA1 bolt-on coilover kits front and rear, then dial in the perfect stance and shock settings. Our old Chevelle is really starting to look mean!

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