Story
The 1964 Plymouth Savoy Max Wedge was part of Plymouth's final Super Stock 426-III program, not a Savoy-only trim. Reviewed records place the package across eligible Savoy, Belvedere, Fury, and Sport Fury bodies. This page keeps those configurations together rather than creating separate pages for each body, compression ratio, or transmission.
The final Max Wedge
The 11.0:1 engine was rated at 415 gross horsepower and 470 lb-ft. The optional 12.5:1 engine was rated at 425 horsepower and 480 lb-ft. Both used the Stage III cylinder-head and camshaft work, a 15-inch aluminum short-ram manifold, and twin Carter AFB-3705SA four-barrels.
Plymouth offered three transmissions: the standard T-85 close-ratio three-speed, the new A833 four-speed, and a heavy-duty TorqueFlite. The A833 makes 1964 the only production Max Wedge year with a factory four-speed path. The 11.0:1 engine used 3.91 Sure-Grip gearing, while the 12.5:1 configuration used 4.56. Special rear springs and lightweight 10-inch manual drum brakes completed the acceleration-focused chassis.
Lightweight equipment had limits
The aluminum front-end package was available only with the 12.5:1 Super Stock engine. It included aluminum fenders, dust shields, bumper supports, and a hood with an integrated scoop. It was not standard on every Max Wedge Plymouth. A reviewed catalog identifies 14 high-compression, four-speed lightweight Belvederes, but that tightly scoped count is not a total for the entire Plymouth program.
Keep the Hemi and Street Wedge separate
The 365-hp Street Wedge and the later 1964 Race Hemi were distinct engine and package paths. A 426, cross-ram, scoop, four-speed, aluminum panels, or race history cannot establish Super Stock identity by itself. Reconcile the body tag, IBM card or broadcast sheet, engine and transmission evidence, axle, paint and trim, dealer records, and ownership history for the individual car.