For a numbers matching car restoration, a lot of it is about the numbers. So, here are the numbers and codes and to show how they all fit together.
It starts with the Protect-O-Plate
Which matches info of the VIN and matches up with what the cowl tag tells us
12D - build date, fourth week of December 1964
65 - 13837 - 1965 Malibu SS V8 sport coupe
KAN - Built at the Leeds, Kansas assembly plant
8125 - body sequence number at the Kansas plant
792 - white bucket seat interior
N-N - Madeira Maroon paint
Group 1:
W - tinted windshield (this was actually coded wrong as the car for some reason has tinted glass all around)
Group 2:
L - 4-speed transmission
P - Comfort and Convience Group (Day/Night Mirror, two-speed wiper with washer)
S - Rear antenna
R - Rear speaker
Group 3:
C - Padded dash
Group 5:
W - Deluxe front seat belts with retractors
The engine CON VIN and build date. The build date is December 14. The "EC" suffix code denotes the 350hp/327ci engine.
The transmission CON VIN and build date. The build date is December 22.
The factory also attached a part number tag under one of the side cover bolts. The part number is 3857577. Since the M20 was the only 4-speed available in Chevelles, this is the same part number used in all Chevelle application in 1965 except for the Z16 version.
Carburetor numbers
3863150 (Chevy part number)
LIST 3043 (Holley LIST number)
484 (build date, 1964 - August - 4th day)
Alternator numbers
1100693 (Chevy part number)
4K4 (build date, 1964 - October - 4th day)
Starter
1107320 (Chevy part number)
4M4 (build date, 1964 - December - 4th day)
Distributor
1111071 (Chevy part number)
4 D 27 (build date, 1964 - April - 27th day)
Even the jack hook has unique identifying stampings.
Cylinder head casting numbers and dates
Casting number 3782461 ("461" heads)
Casting dates K 11 4 (November 11, 1964) and L 1 4 (December 1, 1964)
Engine block
3782870 ("870" block)
Casting date L 11 4 (December 11, 1964)
Exhaust manifolds
Casting numbers: R - 3840912, L - 3834947 (the X appears randomly on some, not on others)
Fuel pump, most small block fuel pumps look the same, but the L79 pump has unique internal controls and a true L79 AC fuel pump carries the number 40148.
Intake manifold
Casting 3844461 ("461" intake)
Bellhousing
Casting 3858403
Rear axle
CW = 3.31 gears, open (remember, this car was built during the axle plant strike thus the posi unit was installed at the dealership, see reference on the original sales receipt)
12 10 = December 10 (1964, see casting date), it appears the POP has the build date as 12 16, it is not entirely uncommon to see small errors such as this.
B = built at the Buffalo plant
