How Do You Identify An Engine?

How do I know what Chevy engine I have?

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 I identify my LS engine block?

How to Identify an LS EngineThe 8th digit of the VIN.By visual inspection. The easiest way to tell the difference is to check the 8th digit of the Vehicle Identification Number (VIN) on the original vehicle. (See below.) If you don’t have the VIN, you can still identify the engine by visual inspection if you know what to look for.

How can you tell what year a motor is?

8 Answers. The engine will have a alphanumeric casting number on the passenger side (right side) of the block, under the heads. The first letter of the code identifies the decade (C=1960s, D=1970s, E=1980s), the second digit in the code identifies the specific year. A 1973 motor for instance would be D3, as an example.

How do I find my engine number?

The engine number is found on the body of the car’s engine. Car manufacturers ensure that the number is clearly visible. It is imprinted on a metal sticker and placed in such a way that it is easy to see when you open the hood.

Is a 502 a 454 block?

A 502 is basically a 454 only with a larger (4.470″ I think) cylinder bore size which really starts unshrouding the valves and thus starts making some decent horsepower. The 502 requires a different block that has thicker cylinder walls to accomodate the larger bore size required to make it a 502″ engine.

How do I identify a Chevy big block engine?

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 long is an engine serial number?

eight digitsThey are eight digits long and are composed only of numbers. They go in a numerical sequence, based on which engine came first off the assembly line.

What year is the best Chevy 350 engine?

L31 (2002) From a purely technical standpoint, the most recent version of the Chevy 350 would naturally be the best of the bunch. Marketed as the “Vortec 5700” engine, but known internally by the moniker of L31, this engine was used primarily in GM vans and trucks until 2002.

How do you identify an engine block?

The simplest way to identify an engine block is to go by the casting number. These alphanumeric codes generally identify a particular block’s series number, displacement range, casting location and date of manufacture. Location varies by manufacturer and engine type.

Where is the VIN number on the engine block?

Locate the engine identification tag on the block. It is usually located on the passenger side of the block near the second cylinder from the front.

How do you tell if I have a 305 or 350?

By far the easiest way would be to pull a head and measure the bore. A 350 will have a 4 inch bore ( as would a 327 or a 302) while a 305 will have a 3.736 in bore. The difference is very pronounced once you know what you are looking at .

Are all 454 blocks the same?

The 427 and 454 have the same bore (4.25in), thus, any 427 low deck block can be built as a 454 simply by using the 454 crank (4.00in stroke). Some 427s and 454s have 4bolt main caps (and there were a few 4bolt hi-perf 396s), but, the blocks are still the same.

What does an engine number tell you?

Automobiles. Every vehicle engine is marked with an engine number by the factory. The engine number includes coded information, which can be decoded to reveal, for example, year of manufacture, country of manufacture, and engine type.

How long is an engine number?

The engine number is a six digit number that follows a three digit engine code. You may notice that the engine number includes three digits followed by six more digits. The first three digits are your vehicle’s engine code and the last six digits are your vehicle’s engine number.

How can you tell a 400 small block?

Easiest way to spot a 400 is the balancer will have a cut out, not smooth like the internal balamced 283~350’s, also the block will have ribs down by the freeze plugs where the 350 is smooth. 400’s don’t have the 1/8” pipe plug above the timing cover like the 350’s it’s just a undrilled boss.

Is VIN number same as engine number?

A car’s VIN number is sometimes called its chassis number. They are the same – the Vehicle Identification Number is stamped to the chassis of the car and so is fixed to that model in question. … As it is a major component, all cars are given an engine number in addition to a chassis number.

How do I identify a 350 engine?

How to Identify a Chevy 350 MotorLook at the rear of the engine block for casting numbers, by where the transmission mounts to the engine. … Write down that number, and go to MorTec.com. … Look for a second casting number on the rear of the block. … Look at the front of the block, just forward of the valve covers.

What’s the difference between a 396 and 454?

A 396 has basically the same rotating mass as a 454. I can’t speak for reliability issues between the 396 and 454, but in terms of power, anything a 396 can do, a 454 can do better. It’s the same as comparing a 350 to a 305.