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LS3-Powered 1937 Chevrolet Business Coupe 6-Speed

This 1937 Chevrolet Business Coupe was the subject of a custom build completed in 2021 by Killer Hot Rods & Customs of Arlington, Texas, and is powered by a 416ci LS3 V8 paired with a Tremec T-56 Magnum six-speed manual transmission. The car is finished in olive green over saddle vinyl and rides on a Street Rod Garage chassis featuring independent front suspension, power rack-and-pinion steering, Wilwood disc brakes, Strange Engineering coilover shocks, and a Ford 9″ rear end. Additional equipment includes Holley fuel injection, Hooker exhaust headers, a 3″ ceramic-coated Flowmaster exhaust system, Circle Racing aluminum wheels, Classic Instruments gauges, an Old Air Hurricane air conditioning system, and a Retrosound Bluetooth audio system. The car was sold on BaT in July 2022, and the engine was rebuilt in November 2022. This Chevrolet coupe is now offered on dealer consignment in California with a car cover, service records, copies of Modern Rodding Magazine that feature the car, and a clean Florida title.

The body was modified to accommodate the Street Rod Garage chassis, and the bumpers and trim moldings were shaved before the body was refinished in olive green during prior ownership. Features include an Alumicraft polished grille, a center-hinged hood with side louvers, a split windshield, dual wipers, running boards, twin mirrors, and a side-mount antenna.

Black-finished Circle Racing alloy wheels measure 18×8″ up front and 20×12″ out back and are wrapped in 225/45 and 295/45 Continental Extreme Contact tires. The Street Rod Garage chassis features independent front suspension, power rack-and-pinion steering, a four-link rear suspension setup, Strange Engineering coilovers, stainless steel brake lines, and Wilwood Dynalite four-wheel disc brakes with slotted and drilled rotors.

The cabin is houses bomber-style seats trimmed in saddle vinyl with matching door panels and beige loop-pile carpets. Features include lap belts, Wilwood pedals, an American Autowire wiring harness, a Lokar handbrake lever, sound damping material, a Retrosound Bluetooth stereo, and four Infinity speakers. The Old Air Hurricane air conditioning system uses a concealed control panel and was serviced in August 2023.

The sprint-style steering wheel frames Classic Instruments gauges consisting of a 140-mph speedometer, a column-mounted tachometer, and gauges for fuel level, oil pressure, coolant temperature, and voltage. A display panel for the Holley fuel injection system is mounted under the dash ahead of the shifter. The six-digit odometer on this Chevrolet Business Coupe shows approximately 1,700 miles, though total mileage is unknown.

The trunk houses a fuel cell trimmed in brown and green as well as coordinated beige carpeting. The battery is enclosed in the passenger-side storage box.

The LS-based 416ci V8 was initially custom built by Don Hardy and was rebuilt by MS Classic Cars of Seekonk, Massachusetts, in November 2022. The engine wears body-color Chevrolet-script valve covers and utilizes a Holley Terminator X fuel injection system, Russell Performance 6AN fuel hoses and fittings, a stainless steel fuel tank, Hooker exhaust headers, a 3″ ceramic-coated stainless steel Flowmaster exhaust system, Magnaflow mufflers, an aluminum radiator, a Concept One Victory serpentine belt system, and SPAL electric fans. A dynamometer test sheet from 2020 is shown in the gallery and indicates a peak horsepower rating of 636. A coolant line was repaired and the oil was changed in August 2023.

Power is sent to the rear wheels through a Tremec T-56 Magnum six-speed manual transmission, a 3.5″ drive shaft, and a Ford 9″ positraction rear end with 3.7:1 gearing and 31-spline axle shafts. The car is also equipped with a McLeod RST Stage 2 twin-disc clutch. The clutch master cylinder was replaced in 2022.

Additional information

Listing Details

Chassis: DRF73752
Street Rod Garage Chassis
1,700 Miles Shown, TMU
Rebuilt Don Hardy 416ci LS3 V8
Holley Terminator X Fuel Injection
Tremec T-56 Magnum Six-Speed Manual Transmission
Ford 9" Positraction Rear End
Olive Green Paint
Saddle Vinyl Upholstery
18×8" and 20×12" Circle Racing Alloy Wheels
Independent Front Suspension
Power Rack-and-Pinion Steering
Strange Engineering Coilovers
Wilwood Brakes
Classic Instruments
Old Air Hurricane Air Conditioning System
Retrosound Bluetooth Audio System
Service Records

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