© CaminoWorld

1972 El Camino Engine ID Codes

 

 

The engine identification code consists of the engine assembly plant, the engine assembly date, and 3 letter suffix indicating the cubic inch displacement, the horsepower rating, and generally, what type of transmission was to be installed with the engine. Manual transmissions required a bushing in the rear of the bellhousing where an automatic transmission did not. Many engine "accessories" such as the carburetor, distributor, and exhaust manifolds were not installed at the engine assembly plant but rather at the final assembly plant.

Engine

Transmission

Notes

Code

Size-Carb

HP-RPO

    
CAH 250-1 110 Manual-3 Low Compression Engine
CBA 250-1   Manual-3/4 A.I.R./Smog CAM (Calif), NB2
CBD 250-1   Manual-3 A.I.R./Smog CAM (Calif), taxi NB2
CBG 250-1 110 Manual-3  
CBJ 250-1 110 Powerglide  
CBK 250-1 110 Powerglide Taxi
CDL 250-1 110 Powerglide A.I.R.
CDM 250-1 110 Standard A.I.R.
CSD 250-1   Powerglide A.I.R./Smog CAM (Calif), NB2
CAY 307-2   Manual-3/4 A.I.R./Smog CAM (Calif), NB2
CAZ 307-2   Powerglide A.I.R./Smog CAM (Calif), NB2
CKG 307-2 130 Standard  
CKH 307-2 130 Powerglide  
CMA 307-2   TH-350 A.I.R./Smog CAM (Calif), NB2
CTK 307-2 130 TH-350  
CAR 350-2 165-L65 TH-350 A.I.R./Smog CAM (Calif), Police NB2
CDA * 350-2 165-L65 Manual-3/4 A.I.R./Smog CAM (Calif), NB2
CDB ** 350-2 165-L65 Powerglide NB2
CDD * 350-4 175-L48 TH-350 A.I.R./Smog CAM (Calif), NB2
CDG 350-4 175-L48 Manual-3/4 A.I.R./Smog CAM (Calif), NB2
CKA * 350-2 165-L65 Manual-3/4  
CKB * 350-2 165-L65 TH-350  
CKD * 350-4 175-L48 TH-350  
CKK 350-4 175-L48 Manual-4  
CMD * 350-2 165-L65 TH-350 A.I.R./Smog CAM (Calif), NB2
CSH 350-2 165-L65 TH-350 Police
CTL * 350-2 165-L65 TH-350  
CLA 402-4 240-LS3 Manual-4  
CLB * 402-4 240-LS3 TH-400  
CLS 402-4 240-LS3 Manual-3  
CTA 402-4 240-LS3 Manual-3/4 A.I.R./Police - Taxi
CTB * 402-4 240-LS3 TH-400 A.I.R.
CTJ 402-4 240-LS3 TH-400 A.I.R./Police - Taxi
CPA 454-4 270-LS5 Manual-3/4  
CPD * 454-4 270-LS5 TH-400  
CRW * 454-4 270-LS5 TH-400 A.I.R.
CRX 454-4 270-LS5 Manual-3/4 A.I.R.

Engine production totals are listed for U.S. production only.

* Includes Monte Carlo
** Monte Carlo exclusive

A total of 21,779 6-cyl engines were reported installed in Chevelles.
A total of 562,604 8-cyl engines were installed in Chevelles and Monte Carlos; 165,706 307cid, 373,268 350cid, and 23,630 402/454cid engines. However, this does not match the total of 8-cyl cars reportedly built in the U.S. of 578,052. This is a difference of 15,488 8-cyl units with no engines.

Engines reported for the (U.S.-built) Monte Carlo (163,087) does not match the production figure of 163,085 cars. Those break down to 151,859 350cid, 9,960 402cid and 1,268 454cid engines. Seems to be 2 extra engines reported.

Chevrolet reports 584,532 transmissions on the Accumulative Production Report of July 31, 1972. This number is only for U.S.-built Chevelles. This figure does not match the total reported U.S.-built Chevelles of 584,530. This is a difference of 2 transmissions (all types) without cars to put them in. The listed transmissions for the (U.S.-built) Monte Carlo does match the 163,087 engine production but not reported model production number of 163,085.

There is no breakdown of engines or transmissions imported from Canada or installed in imported Chevelles or Monte Carlos.

© CaminoWorld
Arlington engine pad

Bill Hall - 04/30/2010
Baltimore engine pad - Courtesy Bill Hall