On a small block Chevrolet, the casting number is found at the rear of the block on the driver's side (as is with Chevy's big block engines).
Where can I find SBC casting numbers?
The block casting number on smallblock and big block Chevy V-8 motors is located on a ledge found at the rear of the block , most often on the driver's side. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing.
Where are the casting numbers on a 350 block?
Look at the rear of the engine block for casting numbers, by where the transmission mounts to the engine. There will be at least one set of numbers on the block.
Where are the numbers on a Chevy small block?
The identification numbers on a Chevy engine with a small block V-8 are adjacent to the cylinder heads on the passenger's side, close to the front of the engine block . Look closely because the alternator blocks the identification number.
Where is the casting number on a big block Chevy?
The block casting number on small block and big block Chevy V8 motors is located on a ledge found at the rear of the block , most often on the driver's side. This ledge is below the deck of the block and the ledge forms the mating surface between the block and the transmission bellhousing.
How do I know if my SBC is a 4 bolt main?
Use the suffix code on the block and determine if the engine is original or not. That code can't always tell you its a 4 bolt but if its the origianl motor in a 4 wheel drive 3/4 ton its almost a guarantee its a 4 bolt block.
Where do I find engine block casting numbers?
For CHEVY engines, the block casting number is usually located on a ledge found at the rear of the block and has 6 to 8 digits. This ledge is located near the bellhousing. Sometimes the last three digits of the block casting number are cast into the block on the side.
How do you tell a 327 from a 350?
Measure the stroke. If the stroke is 3.25 its a 307 or 327. If its 3.48 its a 350.
How do you decode Chevy engine casting numbers?
Read the next four digits in the code, which will be all numbers. This refers to the date that the engine was cast. The first two numbers are the month, and the last two are the day. For example, if the numbers read 0107, then the engine was cast on January 7.
How do I know what LS engine I have?
To figure out what LS engine you're staring at, just consult the RPO code . The easiest way to do this is to find the VIN and reference the 8th digit.
How can I tell if I have a small block GM?
- Locate the engine ID number. On small-block V8s, it is located on the passenger-side front of the engine block, right below the cylinder head. ...
- Decode the ID number prefix. The prefix is five-digits long and begins with a letter.
How do I know if I have a big block GM?
The first indication that a motor is a Big Block Chevy is if the codes are stamped above the timing chain cover . All Big Blocks are stamped there. Small Blocks are stamped on a pad in front of the passenger side cylinder head and are often covered by the alternator.
How do I know if I have a 396 big block?
Big blocks are named after the size of their displacement as measured in cubic inches (e.g., 350, 396, 440 and so on). It is easy to identify a 396 Big Block engine made by Chevy as the engine code is stamped above the timing chain cover .
Where is the date code on a SBC?
Look at both the front face and rear face of the engine block for the block date code. It will be located on the top edge of either the front or rear face .
