Where are the casting numbers on a GM engine?
Where are the casting numbers on a GM engine?
A = January through L = December. The center two digits are the day of the month. The final digit is the year the engine was made WITHIN the years that you narrowed it down to when you deciphered the Casting Numbers to the right. The next set of numbers you will find helpful are on the flat part of the Distributor Deck.
Where does the first letter of GM engines come from?
The first letter is almost always F since most GM engines were made in Flint, Michigan. The following numbers are the month first followed by the day of the month. The trailing letters denote what the engine was installed in. The possible Letters for the last ones are explained in the chart below.
What are the casting numbers on a Chevy small block?
CHEVY 348-409 “W” MOTOR V-8 Crankshaft Casting Numbers. CHEVY SMALL BLOCK V-8 Engine Block Casting Numbers. 366298……………….4…Bowtie, Aluminum, billet main caps, 3.398″ bore with sleeves, two piece rear main seal. CHEVY SMALL BLOCK V-8 Cylinder Head Casting Numbers. 10106178…90……350……….LT5, ZR1, DOHC, 32-valve, pass.
When did General Motors start making their own engines?
Until the mid-1970s, most General Motors brands designed and manufactured their own engines with few interchangeable parts between brands. In the mid-1960s, there were 8 separate families of GM V8 engines on sale in the USA. By the 1970s, GM began to see problems with their approach.
A = January through L = December. The center two digits are the day of the month. The final digit is the year the engine was made WITHIN the years that you narrowed it down to when you deciphered the Casting Numbers to the right. The next set of numbers you will find helpful are on the flat part of the Distributor Deck.
The first letter is almost always F since most GM engines were made in Flint, Michigan. The following numbers are the month first followed by the day of the month. The trailing letters denote what the engine was installed in. The possible Letters for the last ones are explained in the chart below.
CHEVY 348-409 “W” MOTOR V-8 Crankshaft Casting Numbers. CHEVY SMALL BLOCK V-8 Engine Block Casting Numbers. 366298……………….4…Bowtie, Aluminum, billet main caps, 3.398″ bore with sleeves, two piece rear main seal. CHEVY SMALL BLOCK V-8 Cylinder Head Casting Numbers. 10106178…90……350……….LT5, ZR1, DOHC, 32-valve, pass.
What are the casting numbers for a Chevy Nova?
55-56 265 Car & Truck 2-bolt 3731548 57 283 Car & Truck 2-bolt No side mount 3737737 57-62 283 2-bolt 3737739 57-62 283 2-bolt 3756519 58-62 283 2-bolt 3782870 62-67 327 car & Truck 2-bolt 3789817 62-67 327 2-bolt 3789935 61-66 283 car & Truck 2-bolt 3790721 64-67 327 2-bolt Chevy II Nova Recessed filter 3791362 66-67 327
