40.614 Corvettes were built in 1980. All Coupes
The Vehicle Identification Numbers, VIN were 1Z878AS400001 through 1Z878AS440614
Fifth digit varies as follows: 8=350 CID 190 HP / 6=350 CID 230 HP / H=350 CID 180 HP

Cubic Inch 305 350 350
HP @ RPM 180 @ 4200 190 @ 4400 230 @ 5200
Torque  RPM 255 @ 2000 280 @ 2400 275 @ 3600
Comp. Ratio 8.5:1 8.5:1 9.0:1
Bore & Stroke 3.736x3.480 4.000x3.480 4.000x3.480
Carburator 4bbl Rochester 4bbl Rochester 4bbl Rochester
In Manifold NIY1 NIY NIY
Valve Lifters NIY NIY NIY
Exhaust NIY NIY NIY
Oil Capacity 4 QT 4 QT 4 QT
Spark Plugs R45TS R45TS R45TS
1 = No Information Yet
14010207 350 CID - 190 HP - 230 HP - Late production
3970010 350 CID - 190 HP - 230 HP
4715111 305 CID - 180 HP
462624 350 CID - 190 HP - 230 HP
14014416 305 CID - 180 HP
305 Cubic Inch Engine CODE
180 HP with Automatic transmission - California emission ZCA
350 Cubic Inch Engine CODE
190 HP with Manual transmission ZAM
190 HP with Automatic transmission ZAK
230 HP with Automatic transmission ZBC
230 HP - Uncertain usage ZBD
Ratio and Type CODE
3.07 Positraction DANA
Color CODE
White 10
Silver 13
Black 19
Dark Blue 28
Dark Brown 47
Yellow 52
Dark Green 58
Frost Beige 59
Dark Claret 76
Red 83
© Tommy Ledberg