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1970 AMC Javelin SST 390
The 1970 Javelin SST combined AMC's first-generation pony-car body with its 390-cubic-inch four-barrel V8. Factory and period records rate the 1970 engine at 325 gross horsepower and 420 lb-ft of torque. Buyers could pair it with a Borg-Warner T-10 four-speed or a Shift-Command automatic.
SST trim brought reclining bucket seats and upgraded cabin details. The optional Go Package added the functional ram-air hood, dual exhaust, heavy-duty cooling and suspension, power front disc brakes, Twin-Grip differential, performance tires, wheels, and stripes. A 390-equipped SST was not automatically a Go Package, Mark Donohue, Trans-Am, or Big Bad car; each package and appearance claim needs its own evidence.
AMC's 1970 palette included twelve standard finishes and the three high-impact Big Bad colors. Big Bad Blue, Orange, and Green used distinct door-tag codes and body-color bumpers. The photographed Big Bad Blue car is a restored 390 Go Package example, not a template for every SST 390.
Reported production totals cover 28,210 Javelins and 19,714 SSTs across all engines and special-edition branches. No dependable ordinary SST 390 subtotal is attached. For an individual car, the VIN engine code, engine tag and casting dates, transmission tag, axle code, door tag, build sheet, window sticker, and original paperwork carry more weight than badges or restoration choices.