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VIN Tag Information
194375S100001 - 194375S123562 (coupe)
194675S100001 - 194675S123562 (convertible)
Digit Definition
1st Division:  1 = Chevrolet
2nd / 3rd Series:  94 = Corvette
4th/5th Body Style:  37 = 2-door coupe, 67 = 2-door convertible
6th Model Year:  5 = 1965
7th Assembly Plant:  S = St. Louis, MO.
Last 6 digits Production Number starting with 100001 - 123562

Engine Suffix ID Numbers
HE: 327ci, 250hp (manual transmission)
HF: 327ci, 300hp (manual transmission)
HG: 327ci, 375hp (manual transmission)
HH: 327ci, 365hp (manual transmission)
HI: 327ci, 250hp (air conditioning, manual transmission)
HJ: 327ci, 300hp (air conditioning, manual transmission)
HK: 327ci, 365hp (air conditioning, manual transmission)
HL: 327ci, 365hp (manual transmission, transistor ignition)
HM: 327ci, 365hp (air conditioning, manual transmission, transistor ignition)
HN: 327ci, 375hp (manual transmission, transistor ignition)
HO: 327ci, 250hp (automatic transmission)
HP: 327ci, 300hp (automatic transmission)
HQ: 327ci, 250hp (air conditioning, automatic transmission)
HR: 327ci, 300hp (air conditioning, automatic transmission)
HT: 327ci, 350hp (manual transmission)
HU: 327ci, 350hp (air conditioning, manual transmission)
HV: 327ci, 350hp (manual transmission, transistor ignition)
HW: 327ci, 350hp (air conditioning, manual transmission, transistor ignition)
IF: 396ci, 425hp (manual transmission, transistor ignition)

Block ID Numbers
3782870: 327ci
3869942: 427ci
3858180: 327ci (limited use)
3855962: 396ci (early production, unknown use)

Head ID Numbers
3782461: 327ci
3856208: 396ci

Carburetor ID Numbers
Carter 3696S #3846246: 327ci, 250hp (automatic transmission)
Carter 3697S #3846247: 327ci, 250hp (manual transmission)
Carter 3720SB #3851762: 327ci, 300hp (automatic transmission)
Carter 3721SB #3851761: 327ci, 300hp (manual transmission)
Holley R2818A #3849804: 327ci, 350hp, 365hp
Holley R3124A #3868826: 396ci, 425hp

Distributor ID Numbers
1111060: 327ci, 365hp (transistor ignition)
1111064: 327ci, 375hp (transistor ignition)
1111069: 327ci, 365hp
1111070: 327ci, 375hp
1111076: 327ci, 250hp, 300hp
1111087: 327ci, 350hp
1111088: 327ci, 350hp (transistor ignition)
1111093: 396ci, 425hp (transistor ignition)

Alternator ID Numbers
1100693: 327ci
1100694: 327ci (air conditioning)
1100696: 327ci, 396ci (transistor ignition)
1100750: 327ci, 350hp, 365hp (air conditioning, transistor ignition)