Re: Dumb question of the day

Posted by dhermesc on December 05, 2006 at 10:12:52 from (68.110.220.22):

In Reply to: Dumb question of the day posted by Mike CA on December 05, 2006 at 08:24:12:

As others have pointed out the H is an over head valve (OHV) design similar to that being used in most engines today except for those that use the overhead cam (OHC) (Ford Triton Series etc). Many larger modern engines still use the "older" overhead valve with pushrods - all the Dodge and Chevy V8s use it and Ford is going back to OHV engine with pushrods with its new "Hurricane" engine. They just can't get as much power out of its Triton V8s as the competition without resorting to blowers and turbos and multiple valves.

The flathead was the "older" design that most manufacturers left behind in the 30s except for Ford and Chrysler (switched in the 50s) and the smaller engines used on lawnmowers. The flat head is limited in its power potential. The best example is the Ford flathead V8 was out powered by the standard Chevy inline 6 through most of the 40s and into the early 50s.

Today even lawnmower engines are using OHV designs to get more power.

Replies:

• Re: Dumb question of the day jakee 14:54:28 12/05/06 (2)
  • Re: Dumb question of the day scotc 19:26:26 12/05/06 (1)
    • Re: Dumb question of the day jakee 19:39:51 12/05/06 (0)

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