- #1956 chevrolet transmission casting numbers serial numbers#
- #1956 chevrolet transmission casting numbers serial#
- #1956 chevrolet transmission casting numbers code#
#1956 chevrolet transmission casting numbers code#
The date code is read the same as the engine block dates. The 8 cylinder head valve covers must be removed to view both the number and the date code. The date code is the same as for engine blocks. The valve cover must be removed to view the date code. The number is located between the number 2 and the number 3 cylinder between the valves, directly above their exhaust outlet port. Head casting numbers for the 6 cylinder can be viewed without removing the valve covers. Sometime in 1960 a VIN derivative was added to the engine pad. The next 2 numbers were for the month of manufacture and then everything was followed by the suffix code. The next 1 or 2 digits were for the month of manufacture and after 1959 the 01 style was used making the use of 2 digits as standard. F for Flint for the 1955 to 1966 small blocks, V or Flint V8 Engine Plant for the 1967 and later small blocks and T for the Tonawanda Plant for the 1965 big blocks and later. Engines were prefixed with source designations instead.
#1956 chevrolet transmission casting numbers serial#
However, this has not been verified.Īs of 1957 the use of continuous serial numbering of the engine was discontinued. Chevrolet specified the model year in 1955 to be 255 for the 1955 Corvette with a 3-speed transmission. Each year page in the Corvette Fact Section will have this information for each Corvette engine code. Then the numbers 54, 55, 56 for the year of model and then the engine suffix code. A source identifier "F" for the Flint engine plant followed the serial numbers.
#1956 chevrolet transmission casting numbers serial numbers#
There is no correlation between the production numbers and the serial numbers other than higher serial numbered corvettes tend to have higher production numbers. The last 6 digits are for the sequential production number.ġ001 was the starting number used for the production numbers at the beginning of each production year. It is also indicative of being manufactured at the Tonawanda, New York, engine plant as shown by the Y. The "A" is for the passenger engine type (not truck) and the Corvette 150 horsepower 235 cubic inch engine with Powerglide transmission. The LAY prefix indicates the 1953 model year. Take special note that the letter "I" is often the Roman numeral one when it is used for serial date coding. For 1955 and later V8 engines the Boss is located at the right front top of the engine, on the pad just in front of the cylinder head. The location of the Boss is just to the rear of the ignition distributor opening for the 1953 to 1955 6 cylinder engines. It seems the only exception was for the 65 small block, as noted above, that ended in a 2 year designation at the end of the casting date.Įngine type identification and manufacturing code stamping was placed on a machined surface that is called a Boss. The castings for the small blocks, 265, 283, 327 and the 350 were done in the Saginaw Plant and then shipped to the Flint plant for assembly and machining. The big block V 8's came from Tonawanda and the small block V 8's were from Flint. The engines came from 2 places and were then sent to St. The ending number is for they year of production. Then followed by one or 2 numbers, 1 to 31, representing the day of the month. Another special note is for the 65 Tonawanda 327 block cast number 3858180 this number is located adjacent to the block number ending in the two year numbers, 65.Įngine casting date codes start with the letter A through L corresponding with each month of the year January to December. Special note for 68 and early 69 427 dates these are located on the lower right side near the freeze plug and engine mount in the front of the starter motor.
The Casting dates can be found on the right side of the block opposite the casting number. Specific Information, Notes for Casting Numbers, Locations and Other Notes.Īll V8 engine casting numbers are located on the top left flange at the rear of the block where the flywheel attachment is formed. Specific Information, Notes for Casting Numbers, Locations and Other Notes
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