Story
1966 Chevrolet Impala Super Sport
The 1966 Impala Super Sport was a separate Chevrolet series, not a 427-only model. A buyer could choose the 155-hp six, either 283, the 275-hp 327, the 325-hp 396, or one of two 427s. Keeping all seven engines on one page reflects how Chevrolet sold the car and avoids turning an option into a second identity.
From cruiser to full-size muscle
The line began with the 250 six and 195-hp 283. A 220-hp four-barrel 283 and the 275-hp 327 filled the middle. Big-block choices were the hydraulic-lifter 325-hp 396, the hydraulic-lifter 390-hp L36 427, and the solid-lifter 425-hp L72 427. The L72 is the headline configuration, but the VIN identifies only the six- or eight-cylinder SS series, not a particular V8.
Transmissions and chassis
Chevrolet offered three- and four-speed manuals, Powerglide on compatible engines, and Turbo Hydra-Matic with the 396 and L36 427. The full-size chassis used unequal-control-arm front suspension, a link-located coil-spring rear axle, and 11-inch drums. Positraction, metallic brake equipment, power assist, and F41 heavy-duty suspension were optional.
The Super Sport cabin
Sport Coupes and convertibles received Strato-bucket front seats, a center console, SS identification, special wheel covers, and model-specific brightwork. Fifteen solid colors, selected two-tones, eight interior color families, vinyl roofs, and convertible tops created far more variety than the familiar red 427 image suggests.
What to verify
Start with the VIN series and Fisher body tag. Then match the engine pad and partial VIN where applicable, castings and dates, transmission tag or stamp, axle code, paint, trim, body hardware, options, and paperwork. Badges, an installed 427, a four-speed, or an SS cabin can all be added later and do not establish the original drivetrain.