As Ford’s 5.0-liter dual-overhead-cam (DOHC) “Coyote” V8 becomes ever more modern, picking up dual-injection and Plasma Wire Arc Transfer cylinder liners in the 2018-model-year Ford Mustang GT, a report has emerged that suggests the automaker’s next big truck engine to be built at Windsor could go a bit more old-school. An admin at the SVTPerformance forums, one “SID297”, claims to have knowledge of a 7.3-liter pushrod V8 that’s set to go into production at Ford’s Windsor Engine Plant, which will reportedly replace the company’s aging 6.8-liter SOHC “Triton” V10.
Why Use A Pushrod Design?
Although largely a relic of the past, pushrod engines – a.k.a. overhead-valve (OHV) engines – have stuck around in some applications due largely to their low complexity, reliability, and cheap production. They carry the added advantage of relatively compact external dimensions, hence why Chevrolet’s small-block V8s so often tend to be the engine-swap candidate of choice; you can stick an LS just about anywhere. And of course, where there’s less metal, there’s usually less mass.
The First In A Series
Ford’s 7.3-liter OHV V8 will reportedly be just the first in a range of pushrod-type V8 engines, which will replace the 6.8L Triton V10, and could spell the end for the 6.2L Boss V8. It’s expected to first appear in the Ford F-Series Super Duty for 2020. The block could be cast from either traditional gray iron or Compacted Graphite Iron (CGI), SID297 says. CGI could allow Ford to design a stronger, lighter block than the iron-block 6.2L and 6.8L engines.
Ford’s alleged new 7.3-liter OHV V8 ought to be a boon for the workers at the Windsor Engine Plant, which was in desperate need of some fresh investment. The plant’s 2- and 3-valve 6.8L V10 engines have been mostly sidelined to products like the E-Series cutaway and stripped chassis, the Ford F-650/750 Super Duty, and the F-450/550 Chassis Cab.