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Below is listing of 1973 Corvette engine specifications.

Powertrain Combinations

Engine Transmission Positraction Axle Ratios (*)
3.08:1 3.36:1 3.55:1 3.70:1

Turbo-Fire 350

350 Cu.In. V8

Standard

4-Speed (2.52:1 low) Opt Std    
Turbo Hydra-matic Std Opt    

Turbo-Fire 350

350 Cu.In. V8

RPO L82

4-Speed (2.52:1 low)     Std Opt
4-Speed (2.20:1 low)     Opt Std
Turbo Hydra-matic     Std Opt

Turbo-Jet 454

454 Cu.In. V8

RPO LS4

4-Speed (2.52:1 low) Std Opt    
4-Speed (2.20:1 low) Opt Std Opt  
Turbo Hydra-matic Std Opt    

(*)Air conditioning available with all transmission/axle combinations except with 3.70 axle ratio.

Multiplication Factors

With Manual Transmission
Engine Transmission Total Gear Reduction Axle Ratio
1st 2nd 3rd 4th Rev
350 Cu.In. V8

Standard

4-Speed (2.52:1) 8.47 6.32 4.91 3.36 8.70 3.36
350 Cu.In. V8

RPO L82

4-Speed (2.52:1) 8.95 6.67 5.18 3.55 9.19 3.55
4-Speed (2.20:1) 8.14 6.07 4.70 3.70 8.36 3.70
454 Cu.In. V8
RPO LS4
4-Speed (2.52:1) 7.76 5.79 4.50 3.08 7.98 3.08
4-Speed (2.20:1) 7.39 5.51 4.27 3.36 7.59 3.36

With Automatic Transmission
Engine Transmission

Selector

Position

Total Torque *

Multiplication

Axle Ratio

350 Cu.In. V8

Standard

Turbo

Hydra-matic

Drive 16.05:1 - 3.08:1

3.08:1

Low 16.05:1 - 7.64:1
Second 16.05:1 - 4.56:1
Reverse 13.46:1 - 6.41:1

350 Cu.In. V8

RPO L82

Turbo

Hydra-matic

Drive 18.50:1 - 3.55:1 3.55:1
Low 18.50:1 - 8.80:1
Second 18.50:1 - 5.25:1
Reverse 15.51:1 - 7.38:1

454 Cu.In. V8

RPO LS4

Turbo

Hydra-matic

Drive 16.05:1 - 3.08:1 3.08:1
Low 16.05:1 - 7.64:1
Second 16.05:1 - 4.56:1
Reverse 13.46:1 - 6.41:1

* - Axle Ratio x transmission ratio.