Engine

230 cu in (3.8 L) I6 (1965–66)
250 cu in (4.1 L) I6 (1965–70)
283 cu in (4.6 L) V8 (1965–67)
327 cu in (5.4 L) V8 (1965–67)
307 cu in (5.0 L) V8 (1968)
350 cu in (5.7 L) V8 (1969–70)
400 cu in (6.6 L) V8 (1970)
409 cu in (6.7 L) V8 (1965–66)
396 cu in (6.5 L) V8 (1965–69)
427 cu in (7.0 L) Big-Block V8 (1966–69)
454 cu in (7.4 L) Big-Block V8 (1970) 

Transmission
3/4-speed manual
Powerglide auto
3-speed Turbo Hydramatic automatic 

Chevrolet Biscayne on Wikipedia

MORE SPECS WILL BE HERE SOON