302 / 351 Cleveland (Australia)
- Note that there was also a 302 "Windsor"
The 302 cu in (4.9 L) Cleveland engine was built only in Australia, from 1972 to 1982, and was intended to give consumers a smaller alternative to the - also locally manufactured - 351 cu in (5.8 L) Cleveland engine; Ford Australia had inherited the patterns, molds and tooling for the 'Cleveland' and it was therefore a viable alternative to importing the 302 Windsor. Using a locally reproduced 351 Cleveland block, 302 cubic inches were attained by reducing the stroke of the 351C from 3.5 to 3.0 in (89 to 76 mm) and increasing the connecting rod length from 5.780 to 6.030 in (146.812 to 153.162 mm). Additionally, the 302C cylinder heads were redesigned locally, with smaller combustion chambers (from 72cc to 58cc), to compensate for the reduced stroke.
The combination of closed combustion chambered quench heads with smaller two-barrel style ports made a more powerful setup known in the USA as "Australian Cleveland heads". These heads interchange directly onto 351C engines, and are somewhat sought after outside of Australia as a low-cost method to increase compression ratio. They are a good street alternative to the over-ported four-barrel heads. Using the 302C cylinder heads on an otherwise unmodified 351C may increase the compression ratio beyond a safe level when regular-octane gasoline is used. Using the small-chamber 302C cylinder heads properly requires engine design checks (deck clearance, piston design, camshaft specifications), all optimized for the intended use.
Manufacture of the 302C and 351C ceased at Geelong in August 1982. The last V8-powered Australian Ford Falcon passenger car to receive a 302C was a silver Ford XE Fairmont Ghia ESP sedan, Vehicle Identification Number JG32AR33633K, in November 1982. Ford Australia continued to make remnant stock of the 351C available in Bronco and F-series vehicles until August 1985. Australian-built 351 engines were also used by De Tomaso in Italy for the Pantera, Longchamp, and Deauville cars after American supplies had come to an end. These engines were tuned in Switzerland and were available with a range of outputs up to 360 PS (265 kW; 355 hp).
Read more about this topic: Ford 335 Engine
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