See Figure 1
Used fluids such as engine oil, transmission fluid, antifreeze and brake fluid are hazardous wastes and must be disposed of properly. Before draining any fluids, consult with the local authorities; in many areas, waste oil, etc. is being accepted as a part of recycling programs. A number of service stations and auto parts stores are also accepting waste fluids for recycling.
Be sure of the recycling center's policies before draining any fluids, as many will not accept different fluids that have been mixed together, such as oil and antifreeze.
Three different six-cylinder engines have been offered: the 170, the 200, and the 250 cu in. engines. These engines are all of the same family; the only great difference among them is their bore and stroke. One distinguishing characteristic is the fact that the intake manifold is cast as an integral part of the cylinder head.
Optional V8 engines have been quite numerous and, like the family of six-cylinder engines, there is a great amount of similarity among them.
The most widely used are the 260, 289, and 302 cu in. V8 engines. These are remarkably compact engines with stud-mounted rockers and wedge-shaped combustion chambers. The 260 V8 was dropped from production in 1965, and the 289 saw its last use in 1968.
In 1969, Ford Motor Company introduced a longer-stroke, higher-block version of the 302 engine. This is the 351 Windsor engine and features the wedge-shaped combustion chambers and stud-mounted rockers of the small block engine in a new intermediate-sized block.
Also in 1969, Ford Motor Company added the 351 Cleveland engine. This engine has the same bore and stroke as the Windsor unit, but that is where the similarity ends. It has different-sized main bearings, larger valves, smaller spark plug holes, and semi-hemispherical combustion chambers. It is used concurrently with the Windsor engine in all models. Although the Windsor engine is fitted only with a two-barrel carburetor, the Cleveland engine is used with either two or four-barrel carburetion.
Starting in 1967, the 390 cu in. V8 became available. The following year saw the availability of still other large-block V8s, the 427 and the 428 Cobra Jet.
To qualify for Trans-American sedan racing, Ford built a small number of cars in 1969-70, equipped with a special Boss 302 V8. This is essentially a 302 cu in. engine of the 260-289 family, topped by cylinder heads from the 351 Cleveland engine.
The Boss 302 V8 was eliminated from production in 1971 and it was replaced by a high-performance version of the 351 Cleveland engine. It is designated as the Boss 351 engine.
In 1969 and 1970, Ford released a small number of cars powered by the Boss 429 engine. This unique engine features modified hemispherical combustion chambers, very large valves and ports, valve seats which are canted in two planes, rockers with individual rocker shafts, and O-rings and chevron seals in place of head gaskets. The heads are of aluminum, the valves require special seals, the main bearings have four-bolt main caps, and the spark plugs pass through the rocker covers. In many ways, this highly individual engine requires special procedures for maintenance and repair.
The last of the big-block models is the 429 Super Cobra Jet engine, which was offered only in 1971. Outstanding features of this engine include the use of special rods, forged pistons, big valve heads, four-bolt main caps, small 14(mm) spark plugs, solid lifters, and a 6,000 rpm governor.
For 1972, only a 250 cu in. six-cylinder or 302 or 351 cu in. V8 engines were available.
In mid-1972, Ford re-entered the performance car category with the introduction of the 351 HO (for High Output) engine. Basically the Boss 351 engine, this new offering was modified to meet emission control standards in all fifty states. Changes have included reducing the compression ratio to 8.8:1 and changing to a drastically refined camshaft, despite the retention of mechanical lifters. The car in which this engine is featured is equipped in the same manner as the 1971 Boss, although it no longer carries the Boss name.
For 1973 there are four engines available: the 250 cu in. one-barrel, six-cylinder; the 302 cu in. two-barrel, V8; and two 351 cu in. V8s, one with a two-barrel carburetor and the CJ model with a four-barrel carburetor.