Quote:
Originally Posted by DeckSetter
Manufacturers are moving away from pushrod engines because they have more moving parts than OHC engines. No need to worry about pushrods bending or rocker arms jumping off when you don't have them in the engine to begin with. Reliability sells, ask Honda and Toyota.
All that said, I like my Cobalt XFE, but I wish it had a little more low end torque. I usually drive about 75% highway at 55mph, and going easy on it the last two tanks I've got over 39mpg average. This tank I got some road rage and drove 60 and I'm down to 36.2 (it's also just too much fun to bark 2nd gear...). The car is rated for 36 highway.
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No need to worry about what?!? That pretty much never happens.
The main advantage of OHV is a more compact (energy dense) assembly.
The way we drive pretty much means there is no advantage to OHC.