1967 Chevelle

Engine ID Suffix Codes

Engine Transmission Notes
Code Size HP  
BB 230-1 140 Manual-3 Heavy Duty Clutch/A.C.
BC 230-1 140 Manual-3 Heavy Duty Clutch
BL 230-1 140 Powerglide A.I.R.
BM 230-1 140 Powerglide A.C./A.I.R.
BN 230-1 140 Manual-3 Overdrive/A.I.R.
BO 230-1 140 Manual-3 A.C./A.I.R.
CA 230-1 140 Manual-3 Overdrive
CB 230-1 140 Manual-3 A.C.
CC 230-1 140 Powerglide  
CD 230-1 140 Powerglide A.C.
CM 250-1 155-L22 Manual-3 Overdrive
CN 250-1 155-L22 Manual-3 A.C.
CO 250-1 155-L22 Manual-3 Overdrive/A.I.R.
CP 250-1 155-L22 Manual-3 A.C./A.I.R.
CR 250-1 155-L22 Powerglide A.C.
CS 250-1 155-L22 Powerglide A.I.R.
CT 250-1 155-L22 Powerglide A.C./A.I.R
DA 283-2 195 Manual-3 Overdrive
DB 283-2 195 Manual-4  
DE 283-2 195 Powerglide  
DI 283-2 195 Manual-3 Overdrive/A.I.R.
DJ 283-2 195 Powerglide A.I.R.
DK 283-2 195 Manual-4 A.I.R.
DN 283-2 195 Manual-3 Heavy Duty Clutch
EA 327-4 275-L30 Manual-3/4  
EB 327-4 275-L30 Manual-3/4 A.I.R.
EC 327-4 275-L30 Powerglide A.I.R.
ED 396-4 325 Manual-3/4  
EE 327-4 275-L30 Powerglide L30
EF 396-4 350-L34 Manual-3/4 Heavy Duty Clutch
EG 396-4 375-L78 Manual-3/4  
EH 396-4 325 Manual-3/4 A.I.R.
EJ 396-4 350-L34 Manual-3/4 Heavy Duty Clutch/A.I.R.
EK 396-4 325 Powerglide  
EL 396-4 350-L34 Powerglide  
EM 396-4 325 Powerglide A.I.R.
EN 396-4 350-L34 Powerglide A.I.R.
EP 327-4 325-L79 Manual-3/4  
EQ 327-4 275-L30 Manual-3 Heavy Duty Clutch
ER 327-4 325-L79 Manual-3/4 A.I.R.
ES 327-4 325-L79 Manual-3/4 Heavy Duty Clutch
ET 396-4 325 TH400  
EU 396-4 350-L34 TH400  
EV 396-4 325 TH400 A.I.R.
EW 396-4 350-L34 TH400 A.I.R.
EX 396-4 375-L78 Standard A.I.R.

According to accepted production numbers, the 396 engine installation breaks down as follows:
2-door pickup L35 as an option - 2,565 *
2-door coupe/convertible/pickup L34 350hp high performance engine - 17,176
2-door coupe/convertible/pickup L78 375hp special high performance engine - 612 **

* While the El Camino was NOT available in an SS 396 configuration, the L35, L34, and L78 396cid engines were available in the El Camino (both 13480 and 13680 series). It is known there were 2,565 L35 396-325hp engine options sold. Since this engine was an option in the El Camino and standard equipment on the base SS 396 series, it is apparent that there were 2,565 El Caminos ordered with the L35 V8 engine.

The breakdown of other 396 engines (L34 & L78) among the sport coupe, convertible, and pickup can only be guessed at. See Engine-To-Body-Style for an unbiased & mathematical solution for engine-to-body style distribution.

** Sources indicate there were 630 L78 engines built at the Tonawanda engine plant. Of these, 596 were coded EG for non smog (K19) use, 34 coded EX for California.

1967 396 V8 Engine Production

The base engine for the SS 396 series for 1967 was the L35 396cid 325hp engine. This engine (along with the L34 and L78) was also an optional engine in the El Camino and 2,565 L35 engines were sold. There were 63,006 SS 396 sport coupes (59,685) and convertibles (3,321) sold. There is no way to know how many of the base L35 engines were sold in SS 396 sport coupes and/or convertibles. One can only take the number of L35 options known to be sold in the El Camino body style (2,565) and subtract that from the total number reported by Tonawanda and arrive at a number that would include Total L35 Cars and Service Engines

One cannot take the number of L34 or L78 engines into account for SS 396 sales only since these were also available in the El Camino and only a total number of L34 and L78 options are known; what body style they went into is not known. Since it cannot be determined how many L35 engines were sold in the base SS 396 series (total L35 cars) and the number of L35 service engines cannot be determined.

This was the first year the TH400 automatic transmission was offered in the Chevelle series and this transmission could only be ordered if a 396 engine was ordered. This is also the first year the air injection reactor (RPO K19) was used on the L78 engine.

RPO HP Transmission Suffix Production Notes
L35 325 Manual ED 27,080  
L35/K19 325 Manual EH 4,172  A.I.R.
L35/M35 325 Powerglide EK 5,666  
L35/K19/M35 325 Powerglide EM 892 A.I.R.
L35/M40 325 TH400 ET 9,166  
L35/K19/M40 325 TH400 EV 2,725 A.I.R.
        49,701 Total L35 Engines
2,565 Known L35 El Caminos
  47,136 L35 Cars plus Service Engines
           
L34 350 Manual EF 13,914  
L34/K19 350 Manual EJ 2,176 A.I.R.
L34/M35 350 Powerglide EL 160  
L34/K19/M35 350 Powerglide EN 18 A.I.R.
L34/M40 350 TH400 EU 1,784  
L34/K19/M40 350 TH400 EW 346 A.I.R.
        18,398 Total L34 Engines
        17,176 Total L34 Cars
93.4% of total L34 engine production went into cars 1,222 Service Engines
           
L78 375 Manual EG 596  
L78/K19 375 Manual EX 34 A.I.R.
        630 Total L78 Engines
        612 Total L78 Cars
97.1% of total L78 engine production went into cars 18 Service Engines
           

Examples of engine assembly plant ID stamped codes and engine CON VIN stampings.