Product Summary

Buick, Chevy, Oldsmobile, Pontiac, Front Position

  • Specifically designed for the 1955-1957 Chevy's
  • The threaded aluminum body allows easy ride height adjustment
  • Features easy bolt-in installation with minimal modifications to be made
  • A conical designed allows for a longer, lighter spring with more stored energy that offers increased weight transfer
  • 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

Comes as a Kit

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Key Specs

PositionFront
Shock AdjustabilitySingle Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
Upper Shock MountStud
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Need To Know

Quick and Easy Returns

Return Policy

Details

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.

 

Application

Fits:

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

Specs

  • 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

Specifications

KEY SPECS
BrandQA1
PositionFront
Shock AdjustabilitySingle Adjustable
Shock TypeTwin Tube
Shock Body MaterialAluminum
Upper Shock MountStud
Lower Shock MountTie Bar
Height AdjustableYes
FinishPowder Coated
GENERAL
Compressed Length Range10.00" to 10.99"
Compressed Length10.5"
Extended Length Range15.00" to 15.99"
Extended Length15"
Number of Valving Selections18
Coilover Springs IncludedYes
Sold in QuantityKit
AdjustableYes

Ratings & Reviews

4.9

32 Reviews

Overall Assessment

Customers express satisfaction with the product's perfect fit, ease of installation, and high-quality build that enhances their cars' performance. Superior design and durability are prominently mentioned, asserting this product's edge over competitors. Fitted in various car models, including vintage ones, users appreciate its adaptability. Not only does it offer great usability and ride adjustment, but it also elevates the look of vehicles. Enhancing ride quality, users consistently note improved handling and stability. Many customers, having compared it to other brands, found ours superior and would repurchase. Thus, customers strongly recommend our product for its unmatched quality and effectiveness.

4.9

32 reviews

5

30

4

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I would purchase these again

5.0

5 months ago

J Mac

McMinnville Tennessee

Verified

Coil overs versus coil spring and shock is the only way to go the old style springs that almost kill you taking them out or putting them in is over with a QA one coil over

Would Recommend

Yes Everything was good about those coil over spring

5.0

a year ago

Joe

New Mexico

Verified

The coil overs were a good fit on my 55 Chevy. They were easy to install and fit like a glove. I advised to buy the bearings they call for, make sure you put the permit tax anti-C lubricant. It is a must.

Would Recommend

Worked great on our 57 project

5.0

a year ago

Rat Rod Relics

Saginaw MI

Verified

Got the stance we we looking for on our project 57 Chevy !

Would Recommend

i would use these again

5.0

2 years ago

Ron

Lynden,Wa.

Verified

worked out perfect

Would Recommend

Yes i would

5.0

2 years ago

Camaro

Shelby nc

Verified

Works as it should

Would Recommend

This is an awesome product

5.0

3 years ago

NAK

West Fargo ND

Verified

Great Fit

Would Recommend

This is an awesome product

5.0

3 years ago

NAK

West Fargo ND

Verified

Been planning his upgrade for awhile so glad i moved forward!!

Would Recommend

Excellent product

5.0

3 years ago

56er

Wy307

Verified

56 custom built

Would Recommend

G

5.0

3 years ago

Hollywood

Pennsylvania

Verified

Great product use the on all my cars.

Would Recommend

Went in great ride is great 👍

5.0

3 years ago

Don't have any

PDR I'll

Verified

Ride is great adjustable was simple

Would Recommend

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Showing 10 of 32 reviews

Questions & Answers

22 Questions • 17 Answers

what wrench part numbers are needed for height adjustment?

by R.P.

• 4 years ago

1 answer

Will these coilovers work with the speedway gm a body control arms? Part number 91036472, also what spring rate for a 65 cutlass with a 6.0 iron block and 4l80e transmission?

by Justin prentice

• 7 years ago

1 answer

Hi I have install a LS1 5.7 and 4L60e transmission into my 57 fourdoor belair. With Global west upper and lower A arms.As this is lighter than the blue flame six, with cast iron power glide trans that i removed. It now rides 2" higher in the front with the stock springs. What coil over set up would you recommend to fix this problem ? This is a criuser and would still like to have a smooth ride with some adjust-ability options

by Jack

• 7 years ago

1 answer

What spring rate for an iron block LS truck motor with twin turbos and intercooler and th400 in a 64 chevelle with a/c?

by john

• 8 years ago

1 answer

What spring rate would you recommend for a 57 Chevy 2 door h/t fitted with a 427 big block, and th400

by stu v

• 8 years ago

1 answer

I have a 1966 Chevy Chevelle with a ls1 with A/C what load spring will I need for this

by Randy

• 8 years ago

1 answer

Is there a front coilover conversion kit that will work on a stock 1967 Corvette?

by Jim

• 8 years ago

1 answer

I have a 57 Sedan Delivery drag car SBC Twin Turbo steel front end full roll cage no inner fender wells wanted to know what rating to use 350 or 450 thanks

by steve

• 9 years ago

2 answers

I have a 64 Chevelle with a 400 small block, any suggestions on spring weight ?

by Moonshine

• 9 years ago

2 answers

what spring rating would you recommend 55 chevy no air small block 700r4? Was thinking 350 or 450

by steve

• 9 years ago

6 answers

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