This 1968 Chevrolet Impala Sport Coupe was modified under previous ownership with installation of a turbocharged and intercooled 6.0-liter LY6 V8, a 4L80E four-speed automatic transmission, and a 12-bolt rear axle with a Detroit Truetrac limited-slip differential. Additional equipment is said to include an Isky Racing Cams camshaft, 823 square-port cylinder heads, Holley fuel injection, a Yank Performance torque converter, a Derale Performance transmission cooler, a 4″ aluminum driveshaft, stainless-steel 4″ downpipes, and a 2.5″ dual exhaust system with boost-activated cutouts as well as 18″ Ridler wheels, Baer four-wheel disc brakes, and Viking double-adjustable shocks with front coilovers. The interior is upholstered in red vinyl and features a power-adjustable front bench seat, an MSD 2-Step Launch Control switch, and an Innovate Motorsports SCG-1 boost controller and gauge display. Acquired by the selling dealer in 2021, this modified Impala is now offered with a binder of records, an assembly manual, 2021 dynamometer results, and a clean New Jersey title.
The car was refinished in black as part of the aforementioned build completed under previous ownership in the 2000s. Exterior details include quadruple headlights, six taillights, dual side mirrors, lower body moldings, and chrome bumpers as well as Impala and 327 badging. Close-up photos of the paint and trim are provided in the gallery.
Five-spoke 18″ Ridler wheels are mounted with Nitto NT555 Extreme ZR tires measuring 255/45 up front and 285/40 out back. Suspension and braking modifications include:
- Viking double-adjustable front shocks with adjustable coilovers
- Viking double-adjustable rear shocks
- Helwig front and rear anti-sway bars
- Tubular front control arms with Delrin bushings
- Howe Racing front upper ball joints
- UMI Performance adjustable rear upper control arms
- Baer Brakes Remaster master brake cylinder
- Baer six-piston front calipers over slotted 13″ rotors
- Baer four-piston rear calipers over slotted 12″ rotors
- Stainless-steel brake lines and braided hoses
The cabin features a six-way power-adjustable front bench trimmed in red vinyl that extends to the rear bench as well as the door and side panels. A custom retractable cup holder is fitted within the folding center armrest, and a Motorola push-button AM radio is installed in the factory location. A JVC stereo with USB and Bluetooth connectivity is mounted inside the glove compartment and connected to aftermarket speakers.
A three-spoke steering wheel fronts a horizontal 120-mph speedometer, a tachometer, a clock, and auxiliary gauges. The ammeter is not currently connected, according to the selling dealer. An MSD 2-Step Launch Control switch is activated by the horn button, and a gauge pod mounted under the dash houses an Innovate Motorsports SCG-1 boost controller and wideband air/fuel ratio gauge as well as an AutoMeter Spek-Pro fuel pressure gauge. The five-digit odometer shows 16k miles, approximately 500 of which have been added by the selling dealer. Total mileage is unknown.
The replacement 6.0-liter LY6 V8 was reportedly sourced from a 2008 GMC Savana and fitted with a Borg Warner S475 turbocharger before installation under previous ownership. According to the selling dealer, additional parts and components include:
- LS3-sourced intake manifold
- Isky Racing Cams camshaft
- Brian Tooley Racing valve springs
- 823 square-port cylinder heads
- LS9-spec cylinder head gaskets
- ARP cylinder head fasteners
- Ceramic-coated turbocharger housing
- Garrett high-density intercooler with ATP cast end tanks
- JGS500R wastegate and 50mm blow-off valve
- Holley fuel injection
- DeWitts radiator
- Rick’s Hot Rod Shop 26-gallon fuel tank
- VaporWorx corner fuel pickups
- PressureWorx Dual Pump PWM controller
- 4″ wrapped stainless-steel downpipes
- 2.5″ dual exhaust system with Magnaflow mufflers
- Sound Performance boost-activated exhaust cutouts
An oil change was last performed in 2022.
Dynamometer results from 2021 list peak engine output of 664 horsepower and 790 lb-ft of torque.
Power is sent to the rear wheels through a replacement 4L80E four-speed automatic transmission that was reportedly rebuilt using a Jake’s Transmissions Stage 3 kit. Additional drivetrain modifications are said to include:
- Yank Performance torque converter
- Derale Performance transmission cooler
- 4″ aluminum driveshaft
- Sonnax slip yoke
- Moser Engineering rear yoke
- 12-bolt rear axle
- Detroit Truetrac limited-slip differential
- Proform Perfect Launch differential cover
- 3.31:1 gearing
- Moser Engineering 31-spline axles
A 1968 Chevrolet assembly manual is included in the sale along with a binder of records from the build.
