262 - 400 Codes: CM - CZX

Abbreviations: A.I.R. = Air Injection Reactor, AT = Automatic Transmission (specific type uncertain), FI = Fuel Injection, HDC = Heavy Duty Clutch, MT = Manual Transmission, TBI = Throttle Body Injection, TPI = Tuned Port Injection, TH = Turbo Hydramatic Transmission (model uncertain), TH350 = Turbo Hydramatic 350 Transmission, TH400 = Turbo Hydramatic 400 Transmission, LC = Low Compression, NB2 = CA vehicles with A.I.R. and longer valve overlap camshaft, OD = 3-speed Overdrive, PG = Powerglide Transmission, T/A = Trans Am, YF5 = CA vehicles with A.I.R. and longer valve overlap camshaft.

GM body platform letters A (Chevelle), B (Passenger), F (Camaro/Firebird), G (Malibu/Monte Carlo), X (Nova) = GM body platforms and are used instead of Passenger, Chevelle, etc. Police and Taxi imply passenger car unless otherwise noted. A body platform includes Chevelle and Monte Carlo unless otherwise noted.

(n/a or blank = information not available) - [ Return to Engine Codes Index ]

CodeYearCIDHPTransPlatform/Comments
CM1960-61283230MTB, A/C
CMA1972307130TH350A (Chevelle), F, NB2
CMA1974350145TH350F, X
CMB1972350165THF, NB2
CMB1975350155MTF, X, federal
CMC1974350145MTA, F, X
CMD1972350165TH350A, NB2
CMD1974350145TH350B, police/taxi
CMF1975350155MTA (Monte Carlo), California
CMH1972350165MTF, NB2
CMH1974350160TH400B
CMH1975350155THA
CMJ1974350160TH400B, police
CMJ1975350145TH350/400A (Chevelle), B, federal
CMK1974350160TH400B, YF5, police
CML1975350155THF, X, California
CMM1973350175TH400A (Chevelle wagon)
CMM1975350155THA (Chevelle), B, California
CMR1974350145TH350/400A, B
CMR1978350220MTCorvette
CMS1974350185MTF, some YF5
CMS1978350220ATCorvette
CMT1974350245TH400Z28, some YF5
CMU1975350145MTA, F, X
CNC1970307200MTA (Chevelle), F, X
CND1970307200MTA (Chevelle), F, X, 4-speed
CNE1970307200PGA (Chevelle), F,  X
CNF1970307200TH350A (Chevelle), F,  X
CNG1970307200MTA (Chevelle), X, LC
CNH1970307200PGA (Chevelle), X, LC
CNI1970350250MTA, F, X
CNJ1970350300MTA, F, X
CNK1970350300PGA, F, X
CNM1970350250PGA, F, X, PG
CNN1970350250TH350A, F, X, TH350
CNO1970350250MTB
CNP1970350250MTB, police/taxi
CNQ1971350250MTB
CNR1970350300TH350B
CNS1970350300PGB, police/taxi
CNT1970350300TH350B, police/taxi, TH350
CNU1970350250PGB
CNV1970350250TH350B
CNW1970350250PGB, police/taxi
CNX1970350250TH350B, police/taxi
CNY1970350250TH350B, LC
CNZ1970350250PGB, LC
CQ1958-61283230MTCorvette
CR1958-61283250MTCorvette, FI
CR*1964283220MTX
CRD1972350165THF, A.I.R.
CRE1970350300TH350A, F, X
CRG1972350165MTF, A.I.R.
CRH1970400265TH350A (Monte Carlo)
CRK1972350175THX, A.I.R.
CRL1972350175MTX, A.I.R.
CRT1972350255MTCorvette, A.I.R.
CRX1975350145TH350A (Monte Carlo), F, X, federal
CS1958-61283290MTCorvette, FI, hi-lift cam
CS*1964283220MTX, A/C
CSA1973400150TH350/400B
CSA1975400175TH350/400B, police/taxi, NB2, California
CSB1973400150TH350/400B, police
CSB1975400175TH350/400A, B, NB2, California
CSC1973400150TH350B, police, NB2
CSC1975400175TH350/400A (Chevelle)
CSD1973400150TH350/400B, police
CSD1975400175TH350/400A (Chevelle), NB2
CSH1972350165TH350/400A, (Chevelle, police), B
CSJ1973400150TH350B, wagon, NB2
CSK1973400150TH350B, wagon
CSL1973400150TH350B, police wagon, NB2
CSM1973400150TH350B, police wagon
CSM1975400175TH350/400A (Chevelle wagon), NB2
CSU1974400180TH350A (Chevelle
CSU1974400180TH400A (Monte Carlo), B, HEI
CSW1974400150TH400B, police, HEI
CSY1974400180TH400B, wagon, HEI
CSZ1974400180TH400B, police wagon, HEI
CT1958-61283245MTCorvette, 2x4
CTA1974400150TH400A, B
CTB1970350360MTZ28
CTB1974400150TH400B, police
CTC1970350360TH400Z28
CTC1974400180TH350/400A, B, YF5
CTD1970350300MTCorvette
CTD1974400175TH400B, wagon
CTG1970350300TH400Corvette
CTH1970350350MTCorvette
CTH1974400180TH400B, police, HEI, YF5
CTJ1970350350MTCorvette, A/C
CTJ1974400180TH400B, police wagon
CTK1970350370MTCorvette (after 3/24/1970)
CTK1972307130TH350A (Chevelle), F, X
CTK1974400180TH400B, police, YF5
CTL1970350300MTCorvette
CTL1972350165TH350A, F, X
CTL1975400175THA (Monte Carlo), B, NB2, California
CTM1970350300TH400Corvette
CTM1975350155THB, police/taxi, California
CTM1975400175TH350/400B, police wagon, NB2
CTN1970350350MTCorvette
CTO1970350350MTCorvette, A/C
CTP1970350350MTCorvette, TI
CTQ1970350350MTCorvette, TI, A/C
CTU1970350370MTCorvette, TI, w/o P/S, (early)
CTU1975400175TH350/400A (Chevelle), B, California
CTV1970350370MTCorvette, ZR1
CTW1975350155THB, police/taxi, California
CTW1975400175TH350/400B, police
CTX1975400175TH350/400A (Chevelle)
CTY1975400175TH350/400B, wagon
CTZ1975400175TH350/400B, police/taxi, wagon
CU1958-61283270MTCorvette, 2x4, hi-lift cam
CUA1975350165MTCorvette
CUB1975350165MTCorvette
CUD1975350205MTCorvette
CUT1978350185ATCorvette
CY1960-61283275MTCorvette, FI, alum heads (no verification of delivery)
CZ1960-61283315MTCorvette, FI, alum heads, hi-lift cam
CZA1975262110MTMonza, California
CZB1975262110THMonza, California
CZJ1975262110MTX, California
CZK1975262110THX, California
CZL1975262110MTX, A.I.R., federal
CZM1975262110THX, A.I.R., federal
CZT1975262110MTMonza, A.I.R., federal
CZU1975262110THMonza, A.I.R., federal
CZX1970400265MTA (Monte Carlo)