ENGINE ID CODES
Engine Stampings
Air Cleaner Part Numbers
Air Cleaner, Positive Vent (RPO K24)
Air Conditioning *
A.I.R. (Air Injection Reactor)
Belt Part Numbers/Routing
BLOCK
Camshaft
CASTING NUMBERS
Chrome Accessories
Cooling System *
Cylinder Heads
Exhaust
Fuel System *
Generator
Ignition
Miscellaneous
Mounts, Engine
Oil Pan
PCV Valves
Power Teams
Pulleys
Starter Motor
* These sections have multiple pages and those pages only have links to that section and one link to return here.
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.
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 | |||