With Dodge...ya never know if you got the correct parts out of the bin
at the assembly plant.
However, going by this quote from that post: "Makes you want to run out
and spend $400.00 on some heavily marketed roller rockers, NOT."...it's
obvious that the person doesn't seem to understand the difference
between stamped steel (non-adjustable) and roller fulcrum/tip
(adjustable) rockers.
Remember, the Viper rockers are 1.7:1 and look almost identical to the
1.6:1 rockers in the Magnums...and yes, swapping to 1.7:1 rockers DOES
make a difference, to the tune of 18-20RWHP.
- Bernd
-----Original Message-----
From: owner-dakota-truck@dakota-truck.net
[mailto:owner-dakota-truck@dakota-truck.net] On Behalf Of John Neff
Sent: Saturday, July 13, 2002 10:43 PM
To: Dakota Mailing List
Subject: Re: DML: Mopar engine builder claims stock Magnum engine rocker
arms are 1.74 ratio instead of 1.6
Sounds reasonable to me, but wouldn't the end result of what happens at
the valve be more important than measuring the rocker?
Has anyone on the list actually measured the stock rocker vs. a 1.7 or
1.6 roller kit?
John
<snip>
From what I can tell the rocker ratio should be something like the
ratio of the lengths of each side of the center of rotation; that is,
if the distance from the point of contact with the pushrod is 1 inch
from the center of the pivot, the point of contact with the valve "stem"
is 1.6 inches from the pivot (on a 1.6 rocker). <unsnip>
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