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How to Identify a 350 Engine Block

The Chevrolet 350 cubic-inch engine made its debut in 1967 and continues to be manufactured today as a crate engine. As one of Chevrolets longest-running and most popular engines, it is a favorite with restorers, race enthusiasts and engine builders. Identification of the 350 block requires locating and decoding the engine ID number and referring to a suffix code listing to determine the block in question. The entire process is aided by Chevrolets efficient numbering system.

Instructions

1

Find the Chevrolet engine ID number. According to Nasty Z28, it is found on a machined pad in front of the passenger side cylinder head. Removing the alternator may be necessary to access the number. The number consists of a four-position prefix and a three-letter suffix, V0315-CDH, for example.

2

Decipher the prefix portion of the ID number. Nasty Z28 decodes the prefix as follows: the first letter, "V," represents the manufacturing location, in this case Flint, Michigan. The following four-digits are the date of manufacture, "0315," or March 15th.

3

Locate the engine ID suffix on a Chevrolet code listing. Nasty Z28 and Chevy-Camaro both have extensive listings. The suffix code gives important information concerning the block, such as year of manufacture, horsepower designation, model car, etc. The Suffix "CDH" translates as a 1972 350 with 200 horsepower.