Page 561 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Pro Coil-Over Systems
Update early GM muscle cars to modern coil-over front suspension with precise rebound and ride height adjustments. Kits include conical front coil springs,
threaded-body aluminum shocks, hardware, and instructions. Offered in street and drag racing “R” series, choose the kit which best matches front end
weight.
Kit Series Street Series “R” Series Street Series “R” Series Street Series “R” Series
Front End Weight 1701-1900 lbs. 1701-1900 lbs. 1901-2100 lbs. 1901-2100 lbs. 2101-2300 lbs. 2101-2300 lbs.
Spring Rate 350 lbs. 350 lbs. 450 lbs. 450 lbs. 550 lbs. 550 lbs.
Buick
1973-87, Regal QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C —
1964-67, Skylark/GS QA1GS501-10350A — QA1GS501-10450A — — —
1968-72, Skylark/GS QA1GS401-10350B — QA1GS401-10450B — QA1GS401-10550B QA1GR401-10550B
1975-79, Skylark/Apollo, QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
Chevy
1967-69, Camaro QA1GS401-10350A — QA1GS401-10450A QA1GR401-10450A QA1GS401-10550A QA1GR401-10550C
1970-81, Camaro QA1GS501-10350C* QA1GR501-10350C QA1GS501-10450C QA1GR501-10450C QA1GS501-10550C —
1964-67, Chevelle QA1GS501-10350A QA1GR501-10350A QA1GS501-10450A QA1GR501-10450A — —
1968-72, Chevelle QA1GS401-10350B — QA1GS401-10450B — QA1GS401-10550B QA1GR401-10550B
1973-83, Chevelle QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
1963-82, Corvette — — — — QA1GS507-09550D —
Full Size, 1955-57 QA1GS501-10350A QA1GR501-10350A QA1GS501-10450A QA1GR501-10450A — —
1970-72, Monte Carlo QA1GS401-10350B QA1GR401-10350B QA1GS401-10450B QA1GR401-10450B QA1GS401-10550B QA1GR401-10550B
1973-88, Monte Carlo QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
1968-74, Nova/Chevy II QA1GS401-10350A QA1GR401-10350A QA1GS401-10450A QA1GR401-10450A QA1GS401-10550A QA1GR401-10550A
1975-79, Nova/Chevy II QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
1982-04, S-10/S-15 2WD QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
Oldsmobile
1964-67, Cutlass/442 QA1GS501-10350A QA1GR501-10350A QA1GS501-10450A QA1GR501-10450A — —
1968-72, Cutlass/442 QA1GS401-10350B — QA1GS401-10450B — QA1GS401-10550B QA1GR401-10550B
1973-88, Cutlass/442 QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
1973-74, Omega QA1GS401-10350A QA1GR401-10350A QA1GS401-10450A QA1GR401-10450A QA1GS401-10550A QA1GR401-10550A
1975-79, Omega QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
Pontiac
1967-69, Firebird QA1GS401-10350A QA1GR401-10350A QA1GS401-10450A QA1GR401-10450A QA1GS401-10550A QA1GR401-10550A
1970-81, Firebird QA1GS501-10350C* QA1GR501-10350C QA1GS501-10450C QA1GR501-10450C QA1GS501-10550C —
1964-67, Lemans/GTO QA1GS501-10350A QA1GR501-10350A QA1GS501-10450A QA1GR501-10450A — —
1968-72, Lemans/GTO QA1GS401-10350B — QA1GS401-10450B — QA1GS401-10550B QA1GR401-10550B
1973-87, Lemans QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
1974-77, Ventura/GTO QA1GS401-10350C QA1GR401-10350C QA1GS401-10450C QA1GR401-10450C QA1GS401-10550C QA1GR401-10550C
* System with double adjustable shock absorbers also available, substitute QA1GD501-10350C.
MOD Series Shock Absorbers NEW! Remote Canister Style
Innovative multi-patent-pending MOD Series shocks utilize QuickTune technology, which features modular valve
packs that allow complete revalving of the shock without even having to remove it from the car. Coil-over shocks
include 24-click independent compression and rebound adjustments for precise tuning. Made in the USA, shocks
Piggyback Style
are offered in piggyback or remote canister options and are sold complete with thrust bearings. Purchase coil-over
springs separately.

Recommended Spring Comp. Ext. Recommended Spring Comp. Ext.
Part No. Description Ride Height Length Height Height Part No. Description Ride Height Length Height Height
Remote Remote
QA1M411CL 11.5"-12.5" 9" 10.125" 14" QA1M611CL 15"-16.75" 14" 12.5" 18.75"
Canister/Left Canister/Left
Remote Remote
QA1M411CR 11.5"-12.5" 9" 10.125" 14" QA1M611CR 15"-16.75" 14" 12.5" 18.75"
Canister/Right Canister/Right
QA1M411PL Piggyback/Left 11.5"-12.5" 9" 10.125" 14" QA1M611PL Piggyback/Left 15"-16.75" 14" 12.5" 18.75"
QA1M411PR Piggyback/Right 11.5"-12.5" 9" 10.125" 14" QA1M611PR Piggyback/Right 15"-16.75" 14" 12.5" 18.75"
Remote Remote Canister/
QA1M421CL 11.625"-13.5" 10" 10.625" 15" QA1M711CL 15.375"-17.5" 14" 12.875" 19.5"
Canister/Left Left
Remote Remote
QA1M421CR 11.625"-13.5" 10" 10.625" 15" QA1M711CR 15.375"-17.5" 14" 12.875" 19.5"
Canister/Right Canister/Right
QA1M421PL Piggyback/Left 11.625"-13.5" 10" 10.625" 15" QA1M711PL Piggyback/Left 15.375"-17.5" 14" 12.875" 19.5"
QA1M421PR Piggyback/Right 11.625"-13.5" 10" 10.625" 15" QA1M711PR Piggyback/Right 15.375"-17.5" 14" 12.875" 19.5"
Remote Remote
QA1M511CL 14"-15" 12" 11.5" 16.875" QA1M911CL 17.375"-21.625" 14" 14.875" 23.625"
Canister/Left Canister/Left
Remote Remote
QA1M511CR 14"-15" 12" 11.5" 16.875" QA1M911CR 17.375"-21.625" 14" 14.875" 23.625"
Canister/Right Canister/Right
QA1M511PL Piggyback/Left 14"-15" 12" 11.5" 16.875" QA1M911PL Piggyback/Left 17.375"-21.625" 14" 14.875" 23.625"
QA1M511PR Piggyback/Right 14"-15" 12" 11.5" 16.875" QA1M911PR Piggyback/Right 17.375"-21.625" 14" 14.875" 23.625"
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