Get away from this design and go with the one-piece dog-ear thrust plate and sprocket for the sake of simplicity. They also has less metal around the bores, so you canât overbore to come up with a 289. These heads, with good port work, improve horsepower on the high end thanks to 1. The designations of 'Windsor' and 'Cleveland' were derived from the locations of manufacture: Windsor, Ontario and Cleveland, Ohio. Displacing 221 cu in 3. The heads had special close-tolerance pushrod holes to guide the pushrods without rail rocker arms or stamped steel guide plates. Your pistons must have valve reliefs to reduce the risk of valve-to-piston contact.
The key to this engine's power was the large-port, large-valve, quench-chambered, free-flowing heads. Like the 260 head, the 289 has compact 52- to 55-cc chambers with a more recessed spark plug. It is wise to go for the best heads for your application. The greatest challenge you face selecting valve covers is valvetrain clearance issues. If you live in an area that has a local autozone you can call them up and they can give it to you.
Water exits the combustion face of the head and into the block, and then to the radiator. What makes it different is larger 1. Fuel pump eccentrics are another situation to be very mindful of. The only externally visible clue was the use of an open-runner intake manifold with a stamped-steel lifter valley cover attached to its underside, reminiscent of previous-generation V8 engines, such as the and the. Mercury Cougar 77 8 5. Otherwise, the 4V head has the same size valves and ports as the 289. The early 1969 and 1970 heads had larger valves and ports for better performance.
This is a unique package that does not interchange with later one-piece thrust plates. The most important clues are Ford casting numbers and date codes, and understanding the difference between a casting number and part number. How to Build Max Performance Ford V-8S on a Budget. In mid-1997, the Explorer and Mountaineer 5. When Ford introduced the 5. Ford Thunderbird 78 8 5.
Even as the small block neared the end of its life, development continued, with new cylinder heads introduced for the in 1997. Mercury Marquis 78 8 5. It weighed only 470 lb 210 kg dry despite its construction, making it the lightest and the most compact V8 engine of its type of the era. Prior to this date in production, Ford had pushrod guide holes machined into the castings. A new 'Cleveland Style' rocker arm system was incorporated.
From left to right are cast-in timing pointer, bolt-on timing pointer left or right side , and the late-model 5. Your are correct about the carb. The oil squirt bosses were drilled for use in export engines, where the quality of accessible lubricants was questionable. Early small-block Fords have this two-piece thrust plate with what looks like a lock washer. Mercury Grand Marquis 87 8 5. Too much spring pressure, you wear out cam lobes prematurely. The cap featured a longer boss for balancing than the original design.
Additionally, high-flow cast exhaust manifolds similar to those on the 289 Hi-Po K-code engine further improved output. During the 1990s, motor enthusiasts were modifying 351 Cleveland 2V cylinder heads by rerouting the coolant exit from the block surfaces to the intake manifold surfaces for use in the 351W, resulting in the Clevor combining Cleveland and Windsor. In 1974, the oil dipstick tube moved from the timing case to the skirt under the left cylinder bank near the rear of the casting. By 1975, its power dropped as low as 122 hp 91 kW. The down side is chamber design and spark knock. The Boss 302 head has pushrod guide plates and screw-in rocker-arm studs. The 351W offered 150 and 210 horsepower until 1985 when the lower powered 351 was discontinued.
The 351W so identified to distinguish from the 335-series Cleveland 351C uses a taller block than the other engines in the series to avoid excessively short connecting rods. Although we show three here, there are more variations because the aftermarket also makes timing covers. Automobil Revue 2002 in German and French. From left to right are: standard screw-in rocker-arm stud like you see with the 289 High Performance, Boss 302, and Boss 351; adjustable screwin rocker-arm stud; positive-stop no adjust screw-in rocker-arm stud; and press-in adjustable rocker-arm stud. A good rule in high-performance engine building is to opt for the dualroller timing set.
Ford dropped the 260 after the 1964 model year with roughly 604,000 having been made. The same can be said for valvesprings, which should be replaced anytime you build an engine. In an attempt to reduce the high speeds, the organizers of this race capped the engine capacity in 1968. This engine was topped with Gurney-Weslake aluminum heads. You can modify the slinger to clear the chain or eliminate the slinger altogether.