Is "overhead-valve" the wrong way to describe a modern pushrod engine?

A reader recently complained that it has been decades since a volume American car has had an actual "overhead-valve" architecture and that modern "OHV" designs should be described as cam-in-block or pushrod engines. Should the term "OHV" be retired?


on Jul 24, 2013

I don’t agree.
Although he is right regarding the long-time absence of “flat head” or side-valve engines, and technically OHC engines also have “overhead” valves, the OHV
designation is still a useful and commonly used descriptor, and not just by Ward’s.
GM Powertrain, for example, uses the terms “overhead valves” in specifications sheet for engines that are not overhead cam, as do most other manufacturers.

on Aug 15, 2013

Back in the US automotive manufacturing day, when there were Flat Head and OHV engines, Flat Head engines were not considered OHV as the vlaves are beside the piston.Once they moved the valves to over the piston, or "over the head" the designation became OHV. Two seperate designations.

on Aug 16, 2013

So is OHV still an accurate and valid description, or should it be retired and replaced with cam-in-block or pushrod engine?

on Aug 16, 2013

PUSHROD! At least that's what all of us in the steel industry still call them.....

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