1987 - 1993 Gas Engines

Sample of Engine ID's

These engines were named based on the displacement and were produced between 1987 and 1993

Examples:

The names were a three digit number, followed by a letter.

1.) The first two digits of the number represented the displacement.
The 43 in 434A meant the engine was a 4.3L.

2.) The third digit was used for version control.
A 430 and a 431 are both 4.3L's, however the last digit indicates there is difference between the engines.
The numbers at the third digit were not always sequential. 430'5 were built before 431'5, however 432'5 and 434'5 were built at the same time.

3.) The letter at the end was also used for version control and was sequential. A 500A was built before a 5008.

Nothing in the name relates in any way to years of production. Some of these engines were in production for less than a year, others for many years.