The Vehicle Identification Numbers, VIN were 1G1YY22G6Y5100001 through 1G1YY22G6Y51-----
Eighth digit is the engine code: G=350 CID - 345 HP LS-1
For Convertibles, sixth digit is a 3, 2 for Coupes and 1 for Hardtops
Ninth digit is a check code and varies

Cubic Inch 350
HP @ RPM NIY
Torque  RPM NIY
Comp. Ratio NIY
Bore & Stroke NIY
Carburator NIY
In Manifold NIY
Valve Lifters NIY
Exhaust NIY
Oil Capacity NIY
Spark Plugs NIY

12560621 350 CID - 345 HP - Early production
12562174 350 CID - 345 HP - Early production
12560626 350 CID - 345 HP
12559378 350 CID - 345 HP

12559853 350 CID - 345 HP
12564241 350 CID - 345 HP

350 Cubic Inch Engine CODE
345 HP with Automatic transmission ZBH
345 HP with Manual transmission ZBF

Ratio and Type CODE
NIY NIY
NIY NIY

Color CODE
Arctic White 10
Light Pewter Metallic 11
Sebring Silver Metallic 13
Nassau Blue Metallic 23
Navy Blue Metallic 28
Black 41
Torch Red 70
Millennium Yellow 79
Magnetic Red Metallic 86
Dark Bowling Green Metallic 91

Tommy Ledberg