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1964 El Camino Engine ID Codes

 

 

Engine

Transmission

Notes

Code Size-Carb HP-RPO    
G 194-1 120 Manual-3  
GB 194-1 120 Manual-3 Heavy Duty Clutch
GF 194-1 120 Manual-3 P.C.V.
GG 194-1 120 Manual-3 P.C.V./Heavy Duty Clutch
GH 194-1 120 Manual-3 Taxi
GJ 194-1 120 Manual-3 P.C.V./Taxi
GK 194-1 120 Manual-3 A.C.
GL 194-1 120 Manual-3 A.C./Heavy Duty Clutch
GM 194-1 120 Manual-3 P.C.V./A.C.
GN 194-1 120 Manual-3 A.C./Heavy Duty Clutch
K 194-1 120 Powerglide  
KB 194-1 120 Powerglide P.C.V.
KC 194-1 120 Powerglide Taxi
KD 194-1 120 Powerglide P.C.V./Taxi
KH 194-1 120 Powerglide A.C.
KJ 194-1 120 Powerglide A.C./P.C.V.
BL 230-1 155-L61 Powerglide  
BM 230-1 155-L61 Powerglide  
BN 230-1 155-L61 Powerglide

P.C.V.

BP 230-1 155-L61 Powerglide P.C.V./A.C.
LL 230-1 155-L61 Manual-3 A.C.
LM 230-1 155-L61 Manual-3 P.C.V.
LN 230-1 155-L61 Manual-3 A.C./P.C.V.
J 283-2 195 Manual-3  
JA 283-2 195 Manual-4  
JD 283-2 195 Powerglide  
JG 283-4 220-L77 Powerglide  
JH 283-4 220-L77 Standard  
JQ 327-4 250-L30 Standard (Available March, 1964)
JR 327-4 300-L74 Standard (Available June, 1964) *
JS 327-4 365-L76 Standard **
JT 327-4 250-L30 Standard
Transistor Ignition ***
(Available March, 1964)
SR 327-4 250-L30 Powerglide (Available March, 1964)
SS 327-4 300-L74 Powerglide (Available June, 1964)

A total of 149,506 6-cyl engines were installed; 84,400 194cid and 65,106 230cid engines.
A total of 221,328 8-cyl engines were installed; 212,993 283cid and 8,335 327cid engines.

* One reader reports a JR coded L74 block cast May 1, 1964 and assembly date of 0513 from Flint. When the car was sold isn't known but 'availability' dates are always open to some leeway.

** This combination was supposedly built for the 1964 Chevelle but Chevrolet's Accumulative Production Report does not list the RPO as being sold in a Chevelle. It is possible there might have been a few built but not reported.

*** It should be noted that no K66 transistorized ignition options are reported as being sold in the Chevelle lineup by Chevrolet. See 1964 Chevelle RPO Production Numbers.

There is no breakdown of engine type or size by specific series/model.

Canadian Chevelles are not broken down by specific engine size, only engine type.
A total of 13,361 6-cyl engines and a total of 5,524 8-cyl engines were installed Canadian Chevelles but there is no breakdown of body style.