21.801 Corvettes were built in 1971. 14.680 Coupe and 7.121 Convertibles.
The Vehicle Identification Numbers, VIN were 194371S100001 through 194371S121801
For convertibles, fourth digit is a 6

Type Basic Basic  Basic Basic
Cubic Inch 350 350 454 454
HP @ RPM 270 @ 4800 330 @ 5600 365 @ 4800 425 @ 5600
Torque  RPM 360 @ 3200 360 @ 4000 465 @ 3200 475 @ 4000
Comp. Ratio 8.5:1 9.0:1 8.5:1 8.5:1
Bore & Stroke 4.00x3.48 4.00x3.48 4.251x4.00 4.251x4.00
Oil Pressure 40 40 40 40
Carburator 4bbl 4bbl  4bbl  4 bbl
Intake Manifold Cast Iron Cast Iron/Alum Cast Iron Cast Iron
Valve Lifters Hydraulic Hydraulic Hydraulic Hydraulic
Oil Capacity2 4Qt 4Qt 5Qt 5Qt
Spark Plugs R44TS R43TS R43TS R441
1. Models with aluminum cylinder heads use A.C RX43XL
2. Add 1 Qt if you put a new oil filter.

3970010 350 CID - 270 HP & 330 HP
3963512 454 CID - 365 HP & 425 HP

3973487 350 CID - 270 HP & 330 HP
3946074 454 CID - 425 HP
3993820 454 CID - 365 HP
3994026 454 CID - 425 HP

350 Cubic Inch Engine CODE
270 HP + 4-Speed CJL
270 HP + Turbo Hydra-Matic CGT
330 HP + 4-Speed CGZ
330 HP + Turbo Hydra-Matic CJK
330 HP + 4-Speed (HD) CGY
454 Cubic Inch Engine CODE
365 HP + Turbo Hydra-Matic CPJ
365 HP + 4-Speed CPH
425 HP + 4-Speed CPW
425 HP + Turbo Hydra-Matic CPX

Ratio and Type CODE
3.55 Positraction AA
3.70 Positraction AB
4.11 Positraction AC
4.56 Positraction AD
3.08 Positraction AW
3.36 Positraction AX, LR

Color CODE
Nevada Silver 905
Sunflower Yellow 912
Classic White 972
Mille Miglia Red 973
Mulsanne Blue 976
Bridgehampton Blue 979
Brands Hatch Green 983
Ontario Orange 987
Steel Cities Gray 988
War Bonnet Yellow 989

Tommy Ledberg