Chevelle Distributor Identification

Decoding Distributor Numbers

Distributors from 1964 through 1966 were normally cast iron while 1967 and later were aluminum. 1964 through 1966 units have the codes embossed on an aluminum tag while the 1967 and later units have the codes stamped into the housing. The date code is included, indicating the year, month, and day.

For example: 9 L 11 decodes this way: 9 / L / 11

Code Month Code Month Code Month Code Month
A January D April G July K October
B February E May H August L November
C March F June J September M December

 

Year Engine Code
1964 283 195hp
327 all
283 220hp
1111015
1111016
1111051
1965 283 195hp/220hp
327 350hp
327 350hp w/ transistor ignition
396 375hp w/ transistor ignition
327 250hp/300hp
396 375hp
1111015
1111071
1111072
1111074
1111075
1111094
1966 396 375hp w/ transistor ignition
396 375hp
396 325hp
327 275hp
327 275hp w/ A.I.R.
396 325hp w/ transistor ignition
396 360hp
396 360hp w/ transistor ignition
283 195hp/220hp
327 275hp exc. A.I.R. (1st design)
327 350hp (1st design)
327 275hp (2nd design)
327 350hp (2nd design)
1111074
1111100
1111109
1111112
1111116
1111137
1111138
1111139
1111150
1111152
1111154
1111193
1111195
1967 283 195hp exc. 3-speed transmission
396 325hp All, 396 350hp w/ A.I.R.
396 350hp All exc. A.I.R., 396 375hp
327 325hp
327 275hp
283 195hp w/ A.I.R.
396 325hp w/ transistor ignition
1111150
1111169
1111170
1111195
1111249
1111256
1111277
1968 327 250hp
396 325hp All, 396 350hp automatic
396 375hp
307 200hp automatic, 307 200hp manual (2nd design)
327 275hp automatic
327 275hp manual
307 200hp manual (1st design)
327 325hp (1st design)
396 350hp manual
327 325hp (2nd design)
1111150
1111169
1111170
1111257
1111297
1111298
1111439
1111444
1111445
1111448
1969 307 200hp
350 250hp manual
350 250hp automatic
350 300hp manual
350 300hp automatic
396 325hp
396 350hp manual
396 350hp automatic, 375hp all
350 255hp automatic
350 255hp manual
1111481
1111486
1111487
1111488
1111489
1111497
1111498
1111499
1111955
1111956
1970 454 450hp
454 360hp
307 200hp manual
350 300hp manual
350 300hp automatic
402 330hp all
402 350hp manual
402 350hp automatic, 375hp all
350 250hp manual
350 250hp automatic
307 200hp automatic
1111437
1111963
1111985
1111996
1111997
1111998
1111999
1112000
1112001
1112002
1112005
1971 307 200hp manual, 350 245hp automatic
307 200hp automatic
350 245hp manual
350 275hp manual
350 275hp automatic
454 365hp
454 425hp automatic
402 300hp
454 425hp manual
1112005
1112039
1112042
1112044
1112045
1112052
1112054
1112057
1112075
1972 307 130hp manual, 350 165hp all
307 130hp automatic
350 175hp manual
350 175hp automatic
454 270hp all
402 240hp all
1112005
1112039
1112044
1112045
1112052
1112057