Given the same size and flowrates, The method(ohc v.ohv) of operating
the valves has NO EFFECT on hp/tq. That is controlled by cam profile.
OHV's are cheaper to make, OHC's are better from any mechanical point
of view. Ignition, fuel control, cam profile and the mass and balance
of the rotating assembly(not valve train) dictate how an engine will
"lug".
You're right about displacement. BRING ON THE 6.1's.
Dr. Pat
----------
>From: Shaun.Hendricks@bergenbrunswig.com
>
the very thing that limits the pushrod engines in RPM's is
> the same thing that gives them good torque. The additional mass in the
valve
The problem is, we lost engine size as
> well, and in the end, that's what really hurts... as the saying goes:
there's
> no substitute for cubic inches! (or even: SIZE DOES MATTER!)
>
> Shaun H.
>
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