Turbo Hydramatic 400
Only those Chevelles I have documented via build sheet or other paperwork is listed here. There are certainly other Chevrolet models that may use the same transmission code tag.
Julian date calendar - leap years (1964-1968-1972) - non-leap years
Code/Engine | Year/HP |
CC - 396/402 | 1967, 1968, 1969 - 325hp |
CD - 396/402 | 1968 - 350hp 1970 - 330hp (LS3) 1971 - 300hp 1972 - 240hp |
CE - 396/402 | 1969 - 350hp |
CF - 402/454 | 1970 - 350hp 1971 - 365hp 1972 - 270hp |
CR - 454 | 1970 - 360hp (found on Van Nuys LS5s prior to at least 01-14) |
CS - 454 | 1970 - 360hp |
CW - 402 | 1970 - 375hp |
CX - 396 | 1969 - 375hp (also reported on 1969 427 COPO) |
CY - 454 (high shift point) | 1970 - 450hp |
(Note: List is not complete but data collection are ongoing.)
Identification tag
A small metal tag is affixed to the passenger side of the transmission just above the pan rail. This identified the model year, engine type, date, and transmission serial number.
501 ~ May 16, 1967 (501st day from January 1, 1966)
CC ~ 396 (325hp)
67 ~ 1967
13884 ~ Transmission serial number
282 ~ October 9, 1967 (282nd day from Jan 1, 1967)
CC ~ 396 (325hp)
68 ~ 1968
5813 ~ Transmission serial number
337 ~ December 3, 1967 (337th day from Jan 1, 1967)
CC ~ 396 (325hp)
68 ~ 1968
25916 ~ Transmission Serial Number
490 ~ May 4, 1968 (490th day from January 1, 1967)
CD ~ 396 (350hp)
68 ~ 1968
25998 ~ Transmission serial number
531 ~ June 14, 1968 (531st day from January 1, 1967)
CD ~ 396 (350hp)
68 ~ 1968
309469 ~ Transmission serial number
538 ~ June 21, 1968 (538th day from January 1, 1967)
CC ~ 396 (325hp)
68 ~ 1968
60372 ~ Transmission serial number
545 ~ June 28, 1968 (545th day from January 1, 1967)
CC ~ 396 (325hp)
68 ~ 1968
26734 ~ Transmission serial number
228 ~ August 15, 1968 (228th day from January 1, 1968 - leap year)
CC ~ 396/402 (325hp)
69 ~ 1969
2028 ~ Transmission serial number
243 ~ August 30, 1968 (243rd day from January 1, 1968 - leap year)
CC ~ 396/402 (325hp)
69 ~ 1969
2247 ~ Transmission serial number
205 ~ July 23, 1968 (205th day from January 1, 1968 - leap year)
CE ~ 396/402
(350hp)
69 ~ 1969
1071 ~ Transmission serial number
205 ~ July 23, 1968 (205th day from January 1, 1968 - leap year)
CE ~ 396/402
(350hp)
69 ~ 1969
1161 ~ Transmission serial number
290 ~ October 17, 1968 (290th day from January 1, 1968 - leap year)
CE ~ 396/402 (350hp)
69 ~ 1969
1882 ~ Transmission serial number
395 ~ January 29, 1969 (395th day from January 1, 1968 - leap year)
CX ~ 396/402 & 427 (375hp)
69 ~ 1969
2147 ~ Transmission serial number
547 ~ June 30, 1969 (547th day from January 1, 1968 - leap year)
CC ~ 396/402 (325hp)
69 ~ 1969
27014 ~ Transmission serial number
563 ~ July 16, 1969 563rd day from January 1, 1968 - leap year)
CX ~ 396/402 (375hp)
69 ~ 1969
4528 ~ Transmission serial number
300 ~ October 27, 1969 (300th day from Jan 1, 1969)
70 ~ 1970
CS ~ 454 (360hp)
x244 ~ Transmission serial number
304 ~ October 31, 1969 (304th day from Jan 1, 1969)
70 ~ 1970
CF ~ 402 (350hp)
8569 ~ Transmission serial number
388 ~ January 23, 1970 (388th day from Jan 1, 1969)
70 ~ 1970
CS ~ 454 (360hp)
2614 ~ Transmission serial number
281 ~ October 8, 1969 (281st day from Jan 1, 1969)
70 ~ 1970
CY ~ 454 (high shift point) (450hp)
2683 ~ Transmission serial number
413 ~ February 17, 1970 (413th day from Jan 1, 1969)
70 ~ 1970
CY ~ 454 (high shift point) (450hp)
1928 ~ Transmission serial number
419 ~ February 23, 1970 (419th day from Jan 1, 1969)
70 ~ 1970
CF ~ 402 (350hp)
21430 ~ Transmission serial number
441 ~ March 17, 1970 (441st day from Jan 1, 1969)
70 ~ 1970
CY ~ 454 (high shift point) (450hp)
24414 ~ Transmission serial number
469 ~April 14, 1970 (469th day from Jan 1, 1969)
70 ~ 1970
CY ~ 454 (high shift point) (450hp)
2382 ~ Transmission serial number
383 ~ January 18, 1971 (383rd day from Jan 1, 1970)
71 ~ 1971
CD ~ 402 (300hp)
7352 ~ Transmission serial number
463 ~ April 8, 1971 (463rd day from Jan 1, 1970)
71 ~ 1971
CD ~ 402 (300hp)
12894 ~ Transmission serial number
483 ~ April 28, 1971 (483rd day from Jan 1, 1970)
71 ~ 1971
CD ~ 402 (300hp)
13801 ~ Transmission serial number
218 ~ August 6, 1970 (218th day from Jan 1, 1970)
71 ~ 1971
CF ~ 454 (365hp)
1927 ~ Transmission serial number
379 ~ January 14, 1971 (379th day from Jan 1, 1970)
71 ~ 1971
CF ~ 454 (365hp)
5610 ~ Transmission serial number
371 ~ January 6, 1972 (371st day from Jan 1, 1971)
72 ~ 1972
CD ~ 402 (240HP)
9305 ~ Transmission serial number
517 ~ June 1, 1972 (517th day from Jan 1, 1971)
72 ~ 1972
CD ~ 402 (240HP)
18002 ~ Transmission serial number
Courtesy Bill Hall
203 ~ July 22, 1971 (203rd day from Jan 1, 1971)
72 ~ 1972
CF ~ 454 (270HP)
1535 ~ Transmission serial number
309 ~ November 5, 1971 (309th day from Jan 1, 1971)
72 ~ 1972
CF ~ 454 (270HP)
2607 ~ Transmission serial number
Partial VIN
The partial VIN is stamped on the driver side of the transmission just above the pan rail. This identified the model year, assembly plant, last 6 digits of the car the transmission was installed in.
Location on driver side of case.
Partial VIN stamping on a Kansas City-built 1969 Chevelle TH400.
Partial VIN stamping on an Arlington-built 1970 Chevelle TH400.
Partial VIN stamping on an Atlanta-built 1970 Chevelle TH400.
Partial VIN stamping on a Los Angeles-built 1970 Chevelle TH400.
Partial VIN stamping on a Los Angeles-built 1970 Chevelle TH400.
Partial VIN stamping on a Los Angeles-built 1970 Chevelle TH400.
Partial VIN stamping on a Los Angeles-built 1971 Chevelle TH400.
Partial VIN stamping on an Oshawa-built 1971 Chevelle TH400.
Oil Pan
Early 1967 Chevelle TH400 oil pans had a unique heel mark, a bump, and
3 dimples.
According to a Chevrolet Service News Bulletin around July of 1967 saw
a change in the TH400 oil pan; the heel mark, bump, and 1 of the dimples
was gone.