Strange Engineering Coilover Spring and Shock Assembly

Strange Engineering Coilover Spring & Shock Assemblies: Drag Racing Precision in Every Kit

Strange Engineering has built its reputation over more than five decades as a household name among drag racers and crew chiefs. Founded in the late 1950s, the company grew from a two-car garage operation into an industry-leading manufacturer, and that origin story is baked into every product they produce — particularly their coilover spring and shock assemblies. These kits represent some of the most purpose-built suspension hardware available to the serious drag racer.

Aircraft-Quality Aluminum Construction

What separates Strange coilover shock and spring assemblies from the crowd starts at the material level. Shock bodies, eyelets, spring seats, and adjuster nuts are precisely machined from aircraft-quality aluminum before being assembled and inspected by the experts at Strange Engineering. This level of attention to raw material selection and in-house quality control ensures consistency across every unit that leaves the facility.

After Strange coilover shocks are built, they are dyno tested at every extension and rebound speed to ensure proper valve seating and durability — and the drag racing coilover shocks are designed in collaboration with NHRA chassis builders, Pro Mod racers, and World Champion Sportsman Class racers. That real-world development input is evident in the tuning flexibility these assemblies offer.

Single and Double Adjustable Options

Strange Aluminum Single Adjustable Coil-Over Shocks permit precise rebound adjustment — adjustment nuts are turned to one of ten positions to alter spring tension according to external conditions such as surface condition and temperature, and lock nuts hold the adjustment nuts securely in place until further adjustments are needed.

For racers who demand even more control, double adjustable coilover shocks are offered to drag racers requiring more control of the suspension system — the double adjustable shock incorporates an additional knob for accurately adjusting compression (bump), and the ability to independently adjust both extension and compression allows the chassis tuner complete dampening control of the vehicle's suspension.

Strange's dynamometer facility enables the team to analyze shocks at all shaft speeds and continue valve development to stay at the forefront of drag racing shock technology, and the shocks incorporate a wide range of adjustments that suit most needs — but custom valving is always available.

Complete Kits with Premium Hyperco Springs

Strange doesn't just sell shock bodies — their coilover packages are complete, ready-to-run assemblies. Teflon-lined high misalignment bushings, Torrington Spring Seat Bearing plates, and Hyperco Springs are included with Strange Aluminum Double Adjustable Coilover Shocks. These double adjustable shock packages include Teflon-lined high misalignment bearings, spring seat bearings, and Hyperco Springs — supplied to ensure consistent performance and alleviate additional problems that may be introduced with lesser-grade springs.

Multiple stroke lengths are available across the lineup — from compact 3.36" stroke units suited to tight front-end applications all the way up to long-travel 8.14" stroke configurations — making it possible to spec the correct assembly for a wide range of drag race platforms and chassis designs. Custom options including polyurethane bushings with steel sleeves, upper stud mounts with rubber cushions, and custom valving are also available.

Built and Backed by a Racing Legacy

Strange Engineering was founded inside a two-car garage in the late 1950s and has grown into an industry leader for driveline and suspension products — and one thing hasn't changed: the company's commitment to quality products and service. When you install a Strange coilover spring and shock assembly, you're benefiting from decades of on-track development that no catalog copy can fully capture. Browse the full selection of Coilover Spring and Shock Assemblies or explore the complete Strange Engineering product lineup to find the right suspension solution for your build.