QA1 high travel coil springs are made in the USA from high-tensile chrome silicon alloy spring wire. The alloy allows fewer coils and a smaller wire diameter, so the spring is lighter and gains travel from the wider spacing between the coils. Reduced unsprung weight helps the suspension react faster for more consistent performance. Careful heat treating and shot peening improve fatigue life, and the coil design can be compressed to coil bind without changing the spring rate or free height. This spring has a 3.570 in inner diameter, a 10 in free length, and a 350 lb/in rate, with ground square ends and a silver powder coat finish. The lower end is a pigtail design. Every QA1 spring carries a lifetime guarantee to remain within 2 percent of its original free height and rate under normal operating conditions.
Specifications:
- Type: chrome silicon high travel coil spring, pigtail end
- Inner diameter: 3.570 in
- Free length: 10 in
- Spring rate: 350 lb/in
- Material: chrome silicon alloy steel
- Finish: Silver powder coat
- Construction: cold wound, heat treated, shot peened, ground square ends
- Made in the USA
- Warranty: lifetime guarantee within 2 percent of free height and rate
- Part number: 10HTSP350
Vehicle Applications:
- 1973 Buick Apollo
- 1974 Buick Apollo
- 1965 Buick Gran Sport
- 1966 Buick Gran Sport
- 1967 Buick Gran Sport
- 1964 Buick Special
- 1965 Buick Special
- 1966 Buick Special
- 1967 Buick Special
- 1967 Chevrolet Camaro
- 1968 Chevrolet Camaro
- 1969 Chevrolet Camaro
- 1964 Chevrolet Chevelle
- 1965 Chevrolet Chevelle
- 1966 Chevrolet Chevelle
- 1967 Chevrolet Chevelle
- 1968 Chevrolet Chevy II
- 1957 Chevrolet Del Ray
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1964 Chevrolet Malibu
- 1965 Chevrolet Malibu
- 1966 Chevrolet Malibu
- 1967 Chevrolet Malibu
- 1969 Chevrolet Nova
- 1970 Chevrolet Nova
- 1971 Chevrolet Nova
- 1972 Chevrolet Nova
- 1973 Chevrolet Nova
- 1974 Chevrolet Nova
- 1964 Oldsmobile 442
- 1965 Oldsmobile 442
- 1966 Oldsmobile 442
- 1967 Oldsmobile 442
- 1964 Oldsmobile Cutlass
- 1965 Oldsmobile Cutlass
- 1966 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass
- 1967 Oldsmobile Cutlass Supreme
- 1973 Oldsmobile Omega
- 1974 Oldsmobile Omega
- 1964 Oldsmobile Vista Cruiser
- 1965 Oldsmobile Vista Cruiser
- 1966 Oldsmobile Vista Cruiser
- 1967 Oldsmobile Vista Cruiser
- 1967 Pontiac Firebird
- 1968 Pontiac Firebird
- 1969 Pontiac Firebird
- 1964 Pontiac GTO
- 1965 Pontiac GTO
- 1966 Pontiac GTO
- 1967 Pontiac GTO
- 1964 Pontiac LeMans
- 1965 Pontiac LeMans
- 1966 Pontiac LeMans
- 1967 Pontiac LeMans
- 1964 Pontiac Tempest
- 1965 Pontiac Tempest
- 1966 Pontiac Tempest
- 1967 Pontiac Tempest
- 1971 Pontiac Ventura
- 1972 Pontiac Ventura
- 1973 Pontiac Ventura
- 1974 Pontiac Ventura
FAQ
What are the specifications of QA1 10HTSP350?
QA1 10HTSP350 is a 350 lb/in coil spring with a 10 in free length and a 3.570 in inner diameter.
What material are QA1 springs made from?
They are made in the USA from high-tensile chrome silicon alloy spring wire for strength, consistency, and long fatigue life.
What finish does this spring have?
This spring has a silver powder coat finish.
What vehicles does QA1 10HTSP350 fit?
It fits a range of 1957 to 1974 GM models, including the Buick Apollo, Buick Gran Sport, Buick Special, Chevrolet Camaro, Chevrolet Chevelle, Chevrolet Chevy II, among others. See the full vehicle applications list for every year, make, and model.
Are QA1 springs covered by a warranty?
Yes. Every QA1 spring carries a lifetime guarantee to remain within 2 percent of its original free height and rate under normal operating conditions.
