Turbo Hydra-Matic 400 Decoding
| Code/Engine | HP/Vehicle |
| CA - 350,396,400,402 | (145,160,170,240,255,265hp) 2bbl, Chevrolet, Monte Carlo |
| CB - 400,427,454 | (180,345,390hp) Chevrolet |
| CC - 396 | (325,350hp) Chevelle, Camaro |
| CD - 327,350,400,402,454 | (215,235,240,250,300hp) Chevrolet, Chevelle, Monte Carlo |
| CE - 396 | (350hp) Chevelle, Camaro, Nova |
| CF - 402,427,454 | (215,235,270,335,350hp) Chevrolet, Chevelle, Monte Carlo |
| CG - 396,454 | (265,365,390hp) Chevrolet, police |
| CH - 427 | (390hp) Chevrolet |
| CJ - 396,402 | (???,240hp) Chevy Truck 10,20,30 series |
| CK - 350 | (165,190,195,200,300hp) Corvette |
| CL - 427 | (400hp) Corvette |
| CP - ??? | (???hp) Chevy Truck C-30 series |
| CQ - 427 | (335hp) Chevrolet |
| CR - 400,402,454 | (170,215,235,240,270,360,390hp) Chevrolet, Monte Carlo, Chevelle, police |
| CS - 454 | (245,270,360,365hp) Corvette, Chevelle, Monte Carlo |
| CT - xxx | (???hp) Chevy Truck C10 & C20 series |
| CW - 402 | (375hp)...Chevelle, Camaro, Nova |
| CX - 396,427 | (375,425,430,435hp) COPO |
| CY - 350,396,427,454 (high shift point) |
(245,375,425,430,435,450hp) Chevrolet, Corvette, Chevelle, Camaro, Nova. |
| CZ - 350 | (205,250,255hp) Corvette |
(Note: List is not complete but data collection is ongoing.)
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.
67 ~ 1967
CC ~ 396/325 HP
501 ~ May 16, 1967 (501st day from January 1, 1966)
13884 ~ Transmission serial number
68 ~ 1968
CC ~ 396/350 HP
282 ~ October 9, 1967
5813 ~ Transmission serial number
68 ~ 1968
CC ~ 396/325 HP
337 ~ December 3, 1967
25916 ~ Transmission Serial Number
69 ~ 1969
CE ~ 396/325 HP
205 ~ July 23, 1968 (205th day from January 1, 1968 - leap year)
1071 ~ Transmission serial number
69 ~ 1969
CC ~ 396/325 HP
228 ~ August 15, 1968 (228th day from January 1, 1968 - leap year)
2028 ~ Transmission serial number
69 ~ 1969
CE ~ 396/350 HP
290 ~ October 17, 1968 (290th day from January 1, 1968 - leap year)
1882 ~ Transmission serial number
70 ~ 1970
CF ~ 402,427,454/215,235,270,335,350hp
304 ~ October 31, 1969 (304th day from Jan 1, 1969)
8569 ~ Transmission serial number
70 ~ 1970
CY ~ 350,396,402,454 (high shift point)
413 ~ February 17, 1970 (413th day from Jan 1, 1969)
1928 ~ Transmission serial number
