23.646 Corvettes were built in 1990.  16.016 Coupes and 7.630 Convertibles
The Vehicle Identification Numbers, VIN were 1G1YY2380L5100001 through 1G1YY2380L5120597
The Vehicle Identification Numbers, VIN were 1G1YZ23J6L5800001 through 1G1YZ23J6L5803049 (ZR1)
For Convertibles, sixth digit is a 3
Ninth digit is a check code and varies

Cubic Inch 350 - ID/VIN 8 350 - ID/VIN J
Net HP @ RPM 245 @ 4000 375 @ 5800
Net Torque @ RPM 345 @ 3200 370 @ 5600
Comp. Ratio 10.25:1 11.0:1
Bore & Stroke 4.000x3.480 3.90 x 3.66
Fuel System TPI - Tuned Port Injection MFI
Valve Lifters Hydraulic Hydraulic
Exhaust NIY NIY
Oil Capacity 4 QT 4 QT
Oil Pressure @ RPM 50-65 @ 2000 60 @ 1850

10090511 350 CID - 375 HP
14093638 350 CID - 245 HP / 250 HP

10088113 350 CID - 245 HP / 250 HP
10106178 350 CID - 375 HP (Right)
10106179 350 CID - 375 HP (Left)

350 Cubic Inch Engine CODE
245 HP / 250 HP with Automatic transmission ZSA
245 HP / 250 HP with Manual transmission - Engine Oil Cooler ZSB
245 HP / 250 HP with Automatic transmission - Engine Oil Cooler ZSC
375 HP - Air condition ZSD
375 HP - Electronic air condition control ZSH

Ratio and Type CODE
NIY NIY
NIY NIY

Color CODE
White 10
Steel Blue Metallic 25
Black 41
Turquoise Metallic 42
Competition Yellow 53
Dark Red Metallic 68
Quasar Blue Metallic 80
Bright Red 81
Polo Green Metallic 91
Charcoal Metallic 96

Tommy Ledberg