all by size   all by year   all by hp   137.5ci/ 2.3L   140ci/ 2.3L   170ci/ 2.8L   200ci/ 3.3L   227ci/ 3.7L   232ci/ 3.8L   238ci/ 3.9L   244ci/ 4.0L   250ci/ 4.1L  [256ci/ 4.2L]  260ci/ 4.3L   281ci/ 4.6L   289ci/ 4.7L   302ci/ 5.0L   315ci/ 5.2L   330ci/ 5.4L   351ci/ 5.8L   390ci/ 6.4L   427ci/ 7.0L   428ci/ 7.0L   429ci/ 7.0L 

The first 256ci/4.2L Mustang engine was introduced in 1980 as a D-Code, 119hp, V8 engine.

There were three 256ci / 4.2L engine offerings in 3 out of the 61 years of Mustang production.

1980	D-code, Optional 4.2L 119hp V8
1981	D-code, Optional 4.2L 115hp V8
1982	D-code, Optional 4.2L 120hp V8

To see other engines go to the engine photo gallery index page.