1968 Chevelle Engine ID Codes - Engine Pad
[ 1964 ] | [ 1965 ] | [ 1966 ] | [ 1967 ] | [ 1968 ] | [ 1969 ] | [ 1970 ] | [ 1971 ] | [ 1972 ]
Engine |
Transmission |
Notes |
||
Code |
Size-Carb |
HP-RPO |
||
BA | 230-1 | 140 | Manual-3 | Overdrive |
BB | 230-1 | 140 | Manual-3 | Heavy Duty Clutch/A.C. |
BC | 230-1 | 140 | Manual-3 | Heavy Duty Clutch |
BD | 230-1 | 140 | Manual-3 | A.C. |
BF | 230-1 | 140 | Powerglide | |
BH | 230-1 | 140 | Powerglide | A.C. |
250 ↓ | ||||
CM | 250-1 | 155-L22 | Manual-3 | Overdrive |
CN | 250-1 | 155-L22 | Manual-3 | A.C. |
CQ | 250-1 | 155-L22 | Powerglide | |
CR | 250-1 | 155-L22 | Powerglide | A.C. |
307 ↓ | ||||
DA | 307-2 | 200 | Manual-3 | Overdrive |
DB | 307-2 | 200 | Manual-4 | |
DE | 307-2 | 200 | Powerglide | |
DF | 307-2 | 200 | Powerglide | |
DN | 307-2 | 200 | Manual-3 | Heavy Duty Clutch |
327 ↓ | ||||
EA | 327-4 | 275-L30 | Manual-3/4 | |
EC * | 327-4 | 275-L30 | Powerglide | Documented on KC-built
13680 & 13637 Documented on Fremont-built 13637 Documented on Atlanta-built 13637 |
EE | 327-4 | 275-L30 | Powerglide | |
EH | 327-4 | 250-L73 | Manual-3/4 | |
EI | 327-4 | 250-L73 | Powerglide | |
EJ | 327-4 | 250-L73 | Manual-3 | Heavy Duty Clutch/L73 |
EO | 327-4 | 275-L30 | Manual-3 | Heavy Duty Clutch |
EP | 327-4 | 325-L79 | Manual-3/4 | Spcl High Perf |
ES | 327-4 | 325-L79 | Manual-3/4 | Spcl High Perf/Heavy Duty Clutch |
396 ↓ | ||||
ED | 396-4 | 325-L35 | Manual-3/4 | A.I.R. |
EF | 396-4 | 350-L34 | Manual-3/4 | A.I.R. |
EG | 396-4 | 375-L78 | Manual-3/4 | A.I.R./Spcl High Perf |
EK | 396-4 | 325-L35 | Powerglide | |
EL | 396-4 | 350-L34 | Powerglide | A.I.R. |
ET | 396-4 | 325-L35 | TH-400 | |
EU | 396-4 | 350-L34 | TH-400 | A.I.R. |
A total of 82,845 6-cyl engines were installed; 39,762 230cid and
43,083 250cid engines.
A total of 381,824 8-cyl engines were installed; 245,032 307cid, 74,007
327cid, and 62,785 396cid engines.
The engine assembly date and ID suffix code as well as the partial VIN for all V8 engines is always stamped on the engine pad as shown here. To date, all L6 engines were stamped on a pad by the distributor.
All 350hp and 375hp, regardless of transmission, as well as 325hp manual transmission SS396 Chevelles, came equipped with A.I.R.; the 325hp SS396 with an automatic did not have the A.I.R. system.
* EC engine code found on several KC-built 13680 El Caminos like the late January El Camino on the Chassis Broadcast Copy sheet and Malibu engine stamp shown here, at least 1 Fremont Malibu, and one Atlanta Malibu. The EE engine number was changed to EC due to a Powerglide cooler line clip being added to the pan rail.
So, if you have a documented 1968 327/275 w/Powerglide and an EC engine code, let me know the plant and VIN sequence so I can document it here and maybe solve issues for others.