1964 Chevelle L30

Dark green 1964 Chevrolet Chevelle Malibu SS two-door hardtop at an outdoor car show in Australia, front three-quarter, with Chevelle fender script and Malibu SS emblem on the rear quarter — 1964 Chevrolet Chevelle Malibu SS sport coupe in dark green Photo: Sicnag, CC BY 2.0, via Wikimedia Commons

Light blue 1964 Chevrolet Chevelle Malibu convertible with the top down at an outdoor car show, front three-quarter, showing the 1964 grille and quad headlamps — 1964 Chevrolet Chevelle Malibu convertible in light blue Photo: Greg Gjerdingen from Willmar, USA, CC BY 2.0, via Wikimedia Commons

Factory statusFactory configuration

Body stylesport-coupe

Trim / packageMalibu Super Sport, L30

Engine327 cid engine

Inductionfour-barrel

Published power250 hp · Chevrolet factory gross

Published torque350 lb-ft · Chevrolet factory gross torque

Forward gears4

Transmissionfour-speed manual

Matched period road testUnknown

What this record proves

The badge is only the beginning.

L30 is the 250-gross-horsepower 327 in a Malibu Super Sport with a four-speed, documented in Chevrolet's own June 1964 release alongside its more powerful sibling. The option code is what fixes this identity; the Super Sport badge by itself does not describe a power team.

Gross ratings were taken without the accessories a running car carries, so 250 gross horsepower is not comparable to a modern net rating and does not predict acceleration. Chevrolet published gross figures for both 327 branches, which at least makes the two internally comparable to each other.

The Chevelle matters to the 1964 argument because it shows a mid-size Chevrolet could be ordered with real power the same year the GTO appeared. Whether that makes the intermediate-performance idea less exclusively Pontiac's is an editorial question the specification record deliberately leaves open.