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Qa1

QA1 3-1/2in ID Tapered High Travel Pigtail Spring - 10in Length x 450lbs/in - Silver Powder Coated

SKU: QAP10HTSP450

Coilover Springs

QAP Springs - 3-1/2 ID...

Qa1

QA1 3-1/2in ID Tapered High Travel Pigtail Spring - 10in Length x 450lbs/in - Silver Powder Coated

SKU: QAP10HTSP450

Coilover Springs

QAP Springs - 3-1/2 ID...

A$233.29
LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

QA1 Pro coilover springs fit perfectly with QA1's front Pro Coil Shock Systems. These springs are available with flat or pigtail ends and in 10 or 11 in. free lengths. Made with the highest quality materials, QA1 springs are strong, consistent, and have a long life. Order the style, size, and spring rate options needed for your application.

Additional details:

* Chrome Silicon steel (CrS) construction for high strength, consistency, and long life
* Cold wound, heat-treated, and shot peened to ensure consistency, accuracy, and durability
* Silver powdercoated for excellent longevity
* High Travel (HT) options have fewer coils and a smaller wire diameter; as a result, they're lighter and have increased travel due to the larger distance between the coils. They reduce unsprung weight and react faster, optimizing suspension performance
* Springs are clearly marked with the free length of the spring and spring rate for quick and easy identification
* All QA1 springs are lifetime guaranteed to remain within 2 percent of the original free height and rate under normal operating conditions
* For Mustang struts or rear Pro Coils, see QA1's 2.5 in. I.D. springs

Product Overview

Available in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2" I.D. high travel springs are manufactured from specially designed high-tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils. These lighter springs reduce unsprung weight and react faster, optimizing suspension performance. In addition, this high-grade material, along with careful heat-treating and post-processing, allows for greatly improved fatigue life, and the coil design allows the springs to be compressed to coil-bind without affecting spring rate or free height. These new high travel springs are silver powder coated and ground at both ends for straight, consistent and accurate operations. In addition, all QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions. Chrome Silicon Steel, All QA1 springs are manufactured using the highest quality materials for high strength, consistency and long life. Cold Wound - Heat Treated - Shot Peened, All QA1 springs go through intensive manufacturing processes to ensure consistency, accuracy and durability. Squared Ends, All QA1 springs are ground at both ends to ensure straight, consistent and accurate operation. Lengths and Rates Marked, All QA1 springs are clearly marked with the free length of the spring and spring rate for quick and easy identification. Made in the USA, QA1's high travel springs are proudly made in the USA. LIFETIME GUARANTEE, All QA1 springs are lifetime guaranteed to remain within 2% of the original free height and rate under normal operating conditions.


Features and Benefits

  • Lifetime guarantee to remain within 2% of their original free height
  • Designed to be as light as possible with maximum travel and superb performance
  • Durable powdercoated finish
  • Made in the USA

Product Details

Brand:QA1
Color:Silver
Description:QA1 3-1/2in ID Tapered High Travel Pigtail Spring - 10in Length x 450lbs/in - Silver Powder Coated
End 1 Type:3.5in ID Pigtail
End 2 Type:2.5in ID Flat
Finish:Powder Coated
Free Height:10
Grade Type:Performance
Manufacturer Part Number:10HTSP450
Material:Chrome Silicon Alloy
Maximum Inside Diameter:2.5
Part Number:qap10HTSP450
Prop 65 - Short Label:WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
Prop 65 Yes/No:Yes
Seat Included:No
Spring Rate:450
Spring Type:Tapered Spring Powder Coated
Suspension Grade Type:Performance
Title:QA1 Coil Spring 10HTSP450
UPC:806990119797

Part Type

Coil Spring

Data: v4.2 - Upd: 2026-10-13 18:04:42

Features

  • Designed to be as light as possible with maximum travel and superb performance
  • Durable powdercoated finish
  • Lifetime guarantee to remain within 2% of their original free height
  • Made in the USA

Specifications

Product Attributes - Brand
QA1
Product Attributes - Manufacturer's Part Number
10HTSP450
Product Attributes - Part Type
Coilover Springs
Product Attributes - Product Line
QA1 Pro Coilover Springs
Product Attributes - UPC
806990119797
Product Attributes - Coilover Spring Inside Diameter (in.)
2.500-3.500 in.
Product Attributes - Coilover Spring Inside Diameter (mm)
63.50-88.90mm
Product Attributes - Coilover Spring Length (in.)
10.000 in.
Product Attributes - Coilover Spring Length (mm)
254.00mm
Product Attributes - Progressive Rate Spring
No
Product Attributes - Coilover Spring Rate (lbs/in)
450 lbs./in.
Product Attributes - Spring Finish
Gray/Silver
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Spring style A. Tapered coil spring with pigtail style spring ends. Used in GD, GR, GS, and MG Pro coilover systems. Lower I.D. 2.50 in. Upper I.D. 3.50 in.

Reference Information

Brand Name/s Qa1
StreetFX SKU qap10HTSP450
SFX Item ID 4091562
Supplier Item Code 4091562
Manufacturer SKU 10HTSP450
Manufacturer UPC 806990119797
Alternative References qa1, QA110HTSP450, 3-1/2in, 10in, 450lbs/in

Compatibility

Application Data
  • UniversalYes
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    DrivetrainRWD
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4098
    DrivetrainRWD
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    DrivetrainRWD
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    DrivetrainRWD
    Engine VIN CodeJ
  • MakeBUICK
    ModelGRAN SPORT
    SubmodelBASE
    Beginning Year1965
    Ending Year1966
    Engine TypeV8
    Engine Size6.6L/401
    Engine FamilyBuick V8
    Liter6.6
    CID401
    CC6572
    DrivetrainRWD
  • MakeBUICK
    ModelGRAN SPORT
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyBuick V8
    Liter5.6
    CID340
    CC5573
    DrivetrainRWD
  • MakeBUICK
    ModelGRAN SPORT
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyBuick V8
    Liter6.6
    CID400
    CC6555
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1964
    Ending Year1964
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1965
    Ending Year1965
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyBuick V8
    Liter5.6
    CID340
    CC5573
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1966
    Ending Year1966
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyBuick V8
    Liter5.6
    CID340
    CC5573
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV6
    Engine Size3.7L/225
    Engine FamilyGM V6
    Liter3.7
    CID225
    CC3687
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Engine Size4.9L/300
    Engine FamilyBuick V8
    Liter4.9
    CID300
    CC4917
    DrivetrainRWD
  • MakeBUICK
    ModelSPECIAL
    SubmodelBASE
    Beginning Year1967
    Ending Year1967
    Engine TypeV8
    Engine Size5.6L/340
    Engine FamilyBuick V8
    Liter5.6
    CID340
    CC5573
    DrivetrainRWD

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