The block casting numbers do not have any letters in them. There are sometimes individual letters found on blocks like "GM" or "CFD" for the Central Foundry Division, but they are not part of the block casting number. Also some of the later blocks have the size of the motor shown in ...
Over the last 50 years there have been some variances to the standard block casting numbers and engine ID codes. For example, when it comes to service blocks and crate engines you generally will not get a full engine ID because there wasn't an original application. You will usually find a...
Chevrolet small-block engine information: Chevy V8 casting numbers, bore and stroke, parts for sale, engine building, Chevy restoration and racers.
Small Block Chevy Head information Casting NumbersBarney Harp
BBC Engine block casting numbersNumber Size Rated Horsepower Production Main Caps 340220 427 1968-1976 Four-bolt (tall-deck) 346236 454 1975 Two-bolt 361959 454 1978-1987 Two-bolt or four-bolt 364776 427 1974-1976 Four-bolt (tall-deck) 364776 454 1977-1990 Four-bolt (tall-deck) 364779 ...
Engine:Chevrolet 454 Big Block Displacement:454 cid (7.4L) Block/Heads:Cast Iron Configuration:90° V8 Bore x Stroke:4.25″ x 4.0″ Compression Ratio:10.25:1, 11.25:1, 8.2:1 Firing Order:1-8-4-3-6-5-7-2 Engine Weight:~685 lbs ...
Port Flow is one more point that owners should learn if they want to change the heads of their small block Chevy. The numbers displayed often implies about the engine performance and the amount of airflow which passes by it. The port flow is represented by CFM which translates to cubic fee...
350 chevy head casting informationBarney Harp
Chevy smallblock and big block cylinder heads have the CASTING NUMBER and the CASTING DATE located in the rocker arm valley. These numbers are found after removing the valve cover on the head. Some cast iron heads have the casting number on the underside of an intake runner. Some aluminum ...