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1969 El Camino Engine ID Codes

 

 

The engine identification code consists of the engine assembly plant, the engine assembly date, and a 2 or 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.

During the 1969 model year, the 396-cubic inch engine was increased in size to 402 cubic inches by means of a .030 increase in cylinder bore size. It is believed this was done due to less restrictive emission standards on engines 400 cubic inches and larger. These new 402cid engines can be identified in 1969 by the three letter suffix code.

Engine

Transmission

Notes

Code

Size-Carb

HP-RPO

    
AD 230-1 140 TH-350  
AM 230-1 140 Manual-3/4  
AN 230-1 140 Powerglide  
AO 230-1 140 TH-350  
AP 230-1 140 Standard A.C.
AQ 230-1 140 Powerglide A.C.
AR 230-1 140 TH-350 A.C.
AS-AU 230-1   Manual-3 Low Compression Engine
AT 230-1   Powerglide Low Compression Engine
AV 230-1   Manual-3 Low Compression Engine, A.C.
BB 250-1 144-L22 Powerglide
Torque Drive		  
BC 250-1 144-L22 Powerglide A.C.
BD 250-1 144-L22 TH-350  
BE 250-1 144-L22 Manual-3  
BF 250-1 144-L22 Standard A.C.
BH 250-1 144-L22 TH-350 A.C.
BI-BJ 250-1   Powerglide Low Compression Engine
BK-BW 250-1   Manual-3 Low Compression Engine
DA 307-2 200 Manual-3/4  
DC 307-2 200 Powerglide  
DD 307-2 200 TH-350  
DE 307-2 200 Manual-4  
FS 307-2   Manual-3 Low Compression Engine
FT 307-2   Powerglide Low Compression Engine
HA 350-4 300-L48 Manual-3/4  
HB 350-4 300-L48 TH-350  
HC 350-2 250-L65 Standard  
HD 350-2 250-L65 TH-350  
HE 350-4 300-L48 Powerglide  
HF 350-2 250-L65 Powerglide  
HP 350-4 300-L48 Standard Heavy Duty Clutch
HQ 350-4 255-LM1 Manual-3/4  
HR 350-4 255-LM1 Powerglide  
HS 350-4 255-LM1 TH-350  
CJA 402-4 325-L35 Standard  
CJC 402-4 350-L34 Standard  
CJD 402-4 375-L78 Standard  
CJE 402-4 350-L34 TH-400  
CJK 402-4 325-L35 TH-400  
CJV 402-4 325-L35 Manual-3/4 Heavy Duty Clutch
CKB 402-4 350-L34 Manual-3/4 Heavy Duty Clutch
CKD 402-4 375-L78 Standard Heavy Duty Clutch
CKF 402-4 375-L78 TH-400  
CKG 402-4 375-L78 (w/L89) Standard Aluminum Heads
CKH 402-4 375-L78 (w/L89) TH-400 Aluminum Heads
CKI 402-4 375-L78 (w/L89) Manual-3/4 Aluminum Heads
JA 396-4 325-L35 Manual-3/4  
JC 396-4 350-L34 Standard  
JD 396-4 375-L78 Standard  
JE 396-4 350-L34 TH-400  
JK 396-4 325-L35 TH-400  
JV 396-4 325-L35 Manual-3/4 Heavy Duty Clutch
KB 396-4 350-L34 Manual-3/4 Heavy Duty Clutch
KD 396-4 375-L78 Standard Heavy Duty Clutch
KF 396-4 375-L78 TH-400  
KG 396-4 375-L78 (w/L89) Standard Aluminum Heads
KH 396-4 375-L78 (w/L89) TH-400 Aluminum Heads
KI 396-4 375-L78 (w/L89) Manual-3/4 Heavy Duty Clutch,
Aluminum Heads
MP 427-4 425-L72 TH-400 COPO
MQ 427-4 425-L72 Manual-4 COPO

A total of 54,851 6-cyl engines were installed; 25,919 230cid and 29,932 250cid engines.
A total of 448,501 8-cyl engines were installed; 245,488 307cid, 116,383 327cid, and 86,630 396cid engines. This figure does not include the 323 427cid COPO engines. Since the 427cid COPO Chevelles were NOT built as SS396 optioned Chevelles, the 323 number would, logically, be subtracted from the base 307cid engine totals.

# GM of Canada reports that of 10,828 13637 Malibu Sport Coupes imported from Canada for sale in the U.S., 1,598 were equipped with the base L35 396 engine and 769 were optioned with the L34 396 engine.
# GM of Canada reporting that of 9,612 13637 Malibu Sport Coupes built for Canada sales 903 were optioned with the Z25 SS Equipment option and of those 903, 294 were further optioned with the L34 396 engine.