Below is a listing of common identification numbers for the 1972 Corvette including engine block, head id, casting numbers and more..
| VIN Tag Information |
1Z37L2S500001 - 1Z37L2S527004 (coupe)
1Z67L2S500001 - 1Z67L2S527004 (convertible) |
| Digit |
Definition |
| 1st |
Division: 1 = Chevrolet |
| 2nd |
Series: Z = Corvette |
| 3rd/4th |
Body Style: 37 = 2-door coupe, 67 = 2-door convertible |
| 5th |
Engine: Base - K, LT1 - L, LS5 - W |
| 6th |
Model Year: 2 = 1972 |
| 7th |
Assembly Plant: S = St. Louis, MO. |
| Last 6 digits |
Production Number starting with 500001 - 527004 |
| Engine Suffix ID Numbers |
| CDH: |
350ci, 200hp, (emission controls, manual transmission) |
| CDJ: |
350ci, 200hp, (automatic transmission, emission controls) |
| CKW: |
350ci, 200hp, (manual transmission) |
| CKX: |
350ci, 200hp, (automatic transmission) |
| CKY: |
350ci, 255hp, (manual transmission) |
| CKZ: |
350ci, 255hp, (ZR1 - manual transmission) |
| CPH: |
454ci, 270hp, (manual transmission) |
| CPJ: |
454ci, 270hp (automatic transmission, unknown use) |
| CRS: |
350ci, 255hp (air injection reactor, automatic transmission) |
| CRT: |
350ci, 255hp (air injection reactor, manual transmission, unknown use) |
| CSR: |
454ci, 270hp, (air injection reactor, manual transmission) |
| CSS: |
454ci, 270hp, (air injection reactor, automatic transmission) |
| Block ID Numbers |
| 3970010: |
350ci, 200hp, 255hp |
| 3970014: |
350ci, 200hp, 255hp, late production |
| 3999289: |
454ci, 270hp |
| Head ID Numbers |
| 3973487: |
350ci, 200hp, 255hp |
| 3998916: |
350ci, 255hp, unknown use |
| 3998993: |
350ci, 200hp, unknown use |
| 3999241: |
454ci, 270hp |
Cylinder Head Casting Number:
The cylinder head casting number is usually found on top of the cylinder head in between two valves and the rocker arm studs.
Cylinder Head Casting Date:
The cylinder head casting date is usually found adjacent to the cylinder head casting number. The casting date code is an alphanumeric sequenced number. The first digit is usually a letter which specifies the month that the block was cast. Some casting dates have been found with all digits being numbers, the first of which corresponds to the month.
| Cylinder Head Casting Number Month Codes (1st Digit) |
| A - January |
E - May |
I - September |
| B - February |
F - June |
J - October |
| C - March |
G - July |
K - November |
| D - April |
H - August |
L - December |
Two main plants were casting Chevrolet engine parts during 1972: Flint, Michigan and Tonawanda, New York.
Example: Flint Cylinder Head Casting Number - D 19 9
- D: Month = April
- 19: Casting Day = 19th
- 9: Casting Year = 1959
Example: Tonawanda Cylinder Head Casting Number - D 19 59
- D: Month = April
- 19: Casting Day = 19th
- 59: Casting Year = 1959
| Carburetor ID Numbers |
| Rochester Q-jet #7042202: |
350ci, 200hp (automatic transmission) |
| Rochester Q-jet #7042203: |
350ci, 200hp (manual transmission) |
| Rochester Q-jet #7042216: |
454ci, 270hp (automatic transmission) |
| Rochester Q-jet #7042217: |
454ci, 270hp (manual transmission) |
| Rochester Q-jet #7042902: |
350ci, 200hp (automatic transmission, emission controls) |
| Rochester Q-jet #7042903: |
350ci, 200hp (manual transmission, emission controls) |
| Holley R6239A #3999263: |
350ci, 255hp |
| Distributor ID Numbers |
| 1112050: |
350ci, 200hp |
| 1112051: |
454ci, 270hp |
| 1112101: |
350ci, 255hp |
| Alternator ID Numbers |
| 1100543: |
454ci, 270hp |
| 1100950: |
350ci, 200hp, 255hp |
| 1100544: |
All with air conditioning. |
Trim Tag Location:
