1970 Chevelle Power Teams

These are the engine, transmission, and rear axle combinations for the 1970 Chevelle.

In 1970, General Motors offered six different engines in seven different horse-power ratings, nine different transmissions, and two different rear axles with five different axle ratios.

The engines offered were the 250 with 155 hp, the 307 with 200 hp, the 350 with 250 hp or 300 hp, the 400 with 330 hp, the 396 with 350 hp, or the 454 with 360 hp.

The transmissions offered were the 3 speed Saginaw with 2.85:1 or 2.54:1 ratio, the 4 speed Saginaw with 2.85:1 or 2.54:1 ratio, the 4 speed Mucie with 2.52:1 or 2.20:1 ratio, the heavy duty Muncie with 2.20:1 ratio, the Powerglide, and the Turbo Hyrda-Matic.

The rear axles were offered in either a 10 bolt or 12 bolt differential using 2.56, 2.73, 3.07, 3.08, 3.31, or 3.36 axle ratios with or without positraction.

Engine Transmission Model Application Axle Ratios
2.56:1 2.73:1 3.08:1 3.31:1 3.36:1
250 Cubic Inch L-6 Turbo-Thirft 250 155 HP Standard (1) 3-Spd. (2.85:1 low)
Powerglide
Sedans, Cpes & Conv.
Std.
Sta. Wags. & Pickups
Std.
Turbo Hydra-Matic Sedans, Cpes & Conv.
Std.
Sta. Wags. & Pickups
Std.
307 Cubic Inch V-8 Turbo-Fire 307 200 HP Standard 3-Spd. (2.85:1 low)
Powergilde
Sedans, Cpes & Conv.
Std.
Sta. Wags. & Pickups
Std.
4-Spd. (2.85:1 low) All Models
Std.
Turbo Hydra-Matic Sedans, Cpes & Conv.
Std.
Sta. Wags. & Pickups
Std.
350 Cubic Inch V-8 Turbo-Fire 350 250 HP RPO L65 3-Spd. (2.54:1 low) All Models
Std.
4-Spd. (2.54:1 low) All Models
Std.
Powerglide All Models
Std.
Turbo Hydra-Matic All Models
Std.
350 Cubic Inch V-8 Turbo-Fire 350 300 HP RPO L48 4-Spd. (2.52:1 low) All Models
Std.
Powerglide
Turbo Hydra-Matic
All Models
Std.
402 Cubic Inch V-8 Turbo-Jet 400 330 HP RPO L53 4-Spd. (2.52:1 low)
Turbo Hydra-Matic
All Models
Std.
402 Cubic Inch V-8 Turbo-Jet 396 350 HP RPO L34 4-Spd. (2.52:1 low)
4-Spd. (2.20:1 low)
Turbo Hydra-Matic
Spt Cpe, Conv. & Pickups
Std.
454 Cubic Inch V-8 Turbo-Jet 454 360 HP RPO LS5 H.D. 4-Spd. (2.20:1 low)
Turbo Hydra-Matic
Spt Cpe, Conv. & Pickups
Std.

1 - Air conditioning not available.

Std. - Standard