The engine in MacSkier (a 1972 Correct Craft Skier) is a '302' Ford block marinized by Crusader (Parent company Thermo Electron Marine Engines -- Thermo Electron sold its Crusader line to Pleasurecraft.)

I read the engine number as D4DE - 6015 - AA but information on the www implies the block was cast in 1974. ("D" = 1970's, "4" = 1974, "D" = Falcon, "E" = Engine, etc.)

The boat is a 1972 Correct Craft Skier according to its title, and the engine is a Ford 302 CID, "220" horsepower.

The V8 Ford 'Windsor' motor family is considered by Ford enthusiasts to be one of the most successful engines produced by the Ford Motor Company. It's commonly referred to as the "Small Block Ford" by many, and by Ford itself.

Introduced in 1962, the Ford Windsor design succeeded the Ford Y-block engine family.

The Windsor family evolved significantly during its 40-year history through technology, performance, and reliability enhancements. Engine displacement also increased from 221 cu up to 351 cu in.

Engines and their components naturally vary between models and displacements. Older motors can frequently be retrofitted with replacement or upgraded parts. Many aftermarket parts exist to fit a wide range of Windsor models.

These motors were originally produced at Ford's Windsor, Ontario engine plant, hence the 'Windsor' designation.

From 1969 though, all Ford small blocks (i.e., Windsors) were produced in Cleveland, Ohio. The mid-sized 335 "Cleveland" V8, introduced in 1970, was intended to replace the larger of the Windsor models. The Windsor, however, ended up outliving its replacement.

In 1996, Ford replaced the 5.0 L (302 cu in) pushrod Windsor V8 with the Modular 4.6 L in the Mustang. Its use continued until 1997 in the F-150 pickup truck, and until 2001 in the Explorer SUV.

From the mid-1970s (SIC) through the 1990s, the Windsor engine was also marinized for use in smaller recreational boats. As of 2008, Windsor engines, including the 5.8 L (351 cu in) and 5.0L 302, are still being manufactured; available as complete crate motors from Ford Racing and Performance Parts.

Some of the following was clipped from the PCM (NOT 'Crusader') engine manual for the PCM "302/4" engine.