Repair 7

Ford 351W Specifications

Ford Motor Company introduced the Ford 351W engine in 1969 and was largely produced in Windsor, Canada. Labeled as a small-block engine, Ford equipped the 351W V8 in their automobiles from the 1960s until 1995. The 351W is sometimes confused with the Ford 351 Cleveland engine. Although having the same 351-cubic inch engine, the 351W had a smaller block cast compared to the Cleveland and their performance are fairly different from each other.

Development

The development of the 351 Windsor started in 1962 when Ford produced their first modern lightweight small-block engine as a replacement for their heavier Y-block. The first 90-degree V-8 engine was 221-cubic inches. The 221 engine had 145 horsepower. The 260 and 289 engines followed in 1963 showing larger bores, and in 1968 the 302 engine was introduced. A year after the 302, the 351W was introduced and came equipped in some of Fords automobiles, like the Ford Mustang. During the mid-70s, the 351Ws performance was toned down to accommodate the new emission rules released by the Federal Government.

Enhancements

The 351W was made with an extended deck height that was 1.3 inches larger than the previous Windsor engines, granting a stroke of 88.9 mm. Most of its standard features are still aligned with its predecessors but the 351W had thicker and longer connecting rods and larger main bearing caps. The first generation of the 351W engine was produced from 1969 to 1974 and was succeeded by the 351s. Although the 351W was an older model, it was considered to be a better engine option than the 351S because of its larger valves, larger heads and engine blocks that used more metal.

Details

The 351W is a 90-degree engine with eight cylinders and overhead valves, and a displacement of 351-cubic inches. Maximum torque comes at 380 foot-pounds at 3,400 rpm and maximum horsepower is at 300 horsepower at 5,400 rpm. Its bore and stroke is 101.6 mm x 88.9 mm and has a compression ratio of 11.0:1. The carburetor is an Autolite 4300-A, 4V-square bore with an automatic choke. The valve trains are hydraulic lifters with a cast-iron intake manifold, and the distributor is a single-point vacuum advance.