6.339 Corvettes were built in 1957. All of them were Convertibles.
The Vehicle Identification Numbers, VIN were E57S100001 through E57S106339

Type Basic 469A 469C 579A 579B 579C 579D
Cubic Inch 283 283 283 283 283 283 283
HP @ RPM 220 245 250 250 283 250 283
Torque  RPM 300 300 305 285 290 290 290
Comp. Ratio N/A N/A N/A N/A N/A N/A N/A
Bore / Stroke N/A N/A N/A N/A N/A N/A N/A
Carburator N/A N/A N/A N/A N/A N/A N/A
In Manifold 1x4 bbl 2x4 bbl 2x4 bbl Fuel Injection Fuel Injection Fuel Injection Fuel Injection
Valve Lifters N/A N/A N/A N/A N/A N/A N/A
Exhaust N/A N/A N/A N/A N/A N/A N/A
Oil Capacity2 4 Qt 4 Qt 4 Qt 4 Qt 4 Qt 4 Qt 4 Qt
Spark Plugs N/A N/A N/A N/A N/A N/A N/A
2. Add 1 Qt if you put a new oil filter.

3731548 All

3740997 283 CID - 220 HP / 245 HP / 250 HP / 270 HP
3731539 283 CID - 283 HP

283 Cubic Inch Engine CODE
220 HP - Manual transmission EF
270 HP - Manual transmission EG
245 HP - Manual transmission EH
283 HP - Manual transmission EL
250 HP - Manual transmission EM
283 HP - Manual transmission - Air Cold induction EN
220 HP - Automatic transmission FH
250 HP - Automatic transmission FK
245 HP - Automatic transmission FG

Ratio and Type CODE
3.55 NIY
3.70 Positraction optional NIY
4.11 Positraction NIY
4.56 Positraction NIY

Color CODE
Onyx Black w Red interior --
Aztec Copper w Beige interior --
Cascade Green w Beige interior --
Arctic Blue w Red interior --
Venetian Red w Red interior --
Polo White w Red interior --
Inca Silver w Red interior --

Tommy Ledberg