Editing Ford 335 engine (section)

===Oil system===
To reduce production costs, Ford eliminated one of the 335 series's main oil galleries from the block casting, leaving two compared to the Small Block family's three.<ref name="Car Tech Lubrication">{{cite web|last1=Cartech|title=Ford 351 Cleveland Engines: Lubrication|url=http://www.cartechbooks.com/techtips/351-cleveland-lubrication/|website=Car Tech Auto Books and Manuals|access-date=15 June 2014}}</ref> The result was an oil system very similar to the 385 series V8s, adequate for street engines but falling short in high-revolution race use without modification.<ref name="Car Tech Lubrication"/> The two main oil galleys in the 335 series engine run along the lifter bores. Oil is fed from the filter to the number one main bearing followed by the number one cam bearing above. At the same time, it also feeds the right hand oil galley, supplying the right side lifter bank. It has four galleries that lead to each of the remaining main bearings. After the oil feeds them, it feeds each corresponding camshaft bearing above. At the rear-most main bearing, the oil goes into the second gallery, which feeds the left lifter bank.<ref name="Cleveland"/><ref name="Pantera 351C Tuning">{{cite web|last1=Pence|first1=George|title=351C Basics and Performance Tuning|url=http://pantera.infopop.cc/eve/forums/a/tpc/f/5650045562/m/319104265|website=Pantera International|access-date=15 June 2014}}</ref> In addition the oil system not prioritizing the main bearings, the 335 engines have excessive clearances in the lifter bores. This results in oil leaking out of the lifter bores which can cause oil cavitation from the lifter motion, and can reduce oil flow to the main bearings.<ref name="CC 351C"/>