Engine
350 cu in (5.7 L) V8
400 cu in (6.6 L) V8
454 cu in (7.4 L) V8
250 cu in (4.1 L) I6 

Transmission
3-speed manual (standard, 1971–1973 on all six-cylinder cars)
3-speed Turbo-Hydramatic automatic (optional 1971–1973 on six-cylinder cars; standard on V-8 powered cars from mid-1971 onwards) 

Chevrolet Biscayne on Wikipedia

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