Editing Ford 335 engine (section)

===302 Cleveland===
[[File:302_Cleveland_Engine_Crankshaft.jpg|thumb|right|An Australian factory-forged 302 Cleveland crankshaft in-situ. The number "302" confirms its intended displacement.]]

In November 1971, Ford of Australia began to manufacture the {{cvt|4942|cc|cuin L cc|1|order=out}} Cleveland engine at the Geelong engine plant alongside of the 351C. The engine remained in production until 1982 and was only produced in Australia. The 302C was considered an economy V8 and it is estimated that only ten percent of Australian Cleveland V8 production was the 302C.<ref name="Cleveland"/> The 302C was created by using the 351C block with a crankshaft that had a {{cvt|3.0|in|0}} stroke while it shared the 2.75" main journal size of the 351C. The 302C had a {{cvt|6.020|in|2}} connecting rod to allow it to share the same piston as the 351C. This resulted in a connecting rod-to-stroke ratio of 2.01:1, making it the highest ratio of the 335 series V8s.<ref name="Cleveland"/> The 302C used a unique cylinder head compared to the Australian 351C to ensure an adequate compression ratio. The 302C had used the "quench" closed combustion chamber with a volume of 56.4–59.4 cc, the smallest of any 335 series engine cylinder head. This head used the small 2V ports and valves, making it the only 335 series head with the closed chambers and small 2V ports.<ref name="V8Workshop">{{cite web|title=The Ford V-8 Engine Workshop|url=http://www.wrljet.com/fordv8/cleveland.html|access-date=22 May 2014|url-status=dead|archive-url=https://web.archive.org/web/20140617183648/http://www.wrljet.com/fordv8/cleveland.html|archive-date=17 June 2014}}</ref>

The combination of the closed chamber heads with the small 2V ports has caused the 302C head to be a bolt-on-performance upgrade for other 335 series V8s. Having the smallest combustion chamber of the 335 series V8s, these cylinder heads will easily boost the static compression ratio of any other 335 series V8. In addition, the small ports used on these head are more efficient for a street performance engine, than the large port 4V heads that tend to favour performance only at higher engine speeds.<ref>{{cite web|title=Aus Ford Parts|url=http://www.ausfordparts.com/ausheads.html|access-date=22 May 2014}}</ref>