How do I identify a Chevy 454 engine?

How to Identify a GM 454

1. Identify the year and model.
2. Look for decals on the engine.
3. Locate the engine ID number located at the front of the engine block on the passenger side.
4. Decode the ID number.
5. Verify the casting numbers from either the cylinder head, intake manifold or crankshaft.

How do I identify a Chevy big block engine?

Find the Engine Codes for the Chevy 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 you tell a 427 from a 454?

if it has two letters it’s 69 or earlier and would have been a 427 originally, if 3 letters it’s from 1970 or newer and would have been a 454.

How tall is a big block chevy engine?

Casting Year CID Main Caps Comments 3855977 1965-67 366 4 tall truck 3866961 1966-69 396 . Chevy, Chevy truck 3869942 1966-67 427 2 or 4 390, 425, 2&4 bolt 3873858 1966 396 . 375, 4 bolt

What are the engine block numbers for a 1967 Chevy?

3789817 Blocks Small Block V8 1962-1967 327, 2 bolt 3789935 Small Block V8 1961-1964 283, 2 bolt 3790721 Small Block V8 1962-1964 283, 2 bolt, recessed oil filter boss

How to decode big block chevy engine suffix codes?

Big Block Chevy Suffix Codes: AAA – CTB. Abbreviations: AB = Air Brakes, AR = Air Injector Reactor, CA = California, HD = Heavy Duty, hdc = heavy duty clutch, HP = High Performance, LP = Liquid Propane Gas, PG = Powerglide, mt = manual trans, mt-3, 3 speed manual, SHP = Special High Performance, TH = Turbo Hydramatic,…

When was the first Chevy engine block made?

Over the years, every American General Motors division, except Saturn, used it and its descendants in their vehicles. In all, over 90,000,000 small-blocks have been built in carbureted and fuel injected forms since 1955.