Where are casting numbers on SBC?

Where are casting numbers on SBC?

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.

How do I identify small block Chevy casting numbers?

Look for the identification number on the engine 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.

How do you read GM 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 you read a 350 casting number?

How to Identify a Chevy 350 Motor

1. Look at the rear of the engine block for casting numbers, by where the transmission mounts to the engine.
2. Write down that number, and go to MorTec.com.
3. Look for a second casting number on the rear of the block.
4. Look at the front of the block, just forward of the valve covers.

Are 305 and 350 parts interchangeable?

A 305 and 350 are identical externally…..just the bore and stroke are different. stroke is the same, just bore is different.

Are 305 and 350 harmonic balancer the same?

In most cases the 305 used a wide hollow balancer about 6 inches tall, 350`s came with the solid 6 inch balancer or solid 8 inch balancer. All small block chevy generation 1 balancers are interchangeable anyways except the 400 small block and the vortec engines of 1996 and later.

Can a 350 harmonic balancer fit a 305?

Everything from the 305(waterpump, pulleys, steering pump, alternator brackets) will swap right to the 350 if you leave the 350 balancer on the engine. You won’t have to mess with the timing tab that way, just use the ’69 tab and the ’69 balancer and everything will be fine.

Are all Chevy 350 harmonic balancer the same?

All harmonic balancers ARE interchangable but you may need to get the right pulley for the power steering. Some had a rubber mount (old style. around the hub and newer ones were all iron and smaller but they DO interchange without affecting balance.