Never mentioned if the motor he was working on was touched before..
Probably already had aftermarket 1.7 rockers in it... I have 100% proof
difference between a set of roller 1.6 and 1.7s... PLUS, the performance
increase of the 1.7 over my stock setup (dyno numbers/timeslips to prove
it).
He's probably a great LA motor guy, but doesn't know a lot about the
magnum line of engines IMO.
Sam
-----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 7:55 PM
To: Dakota Mailing List
Subject: DML: Mopar engine builder claims stock Magnum engine rocker
arms are 1.74 ratio instead of 1.6
This is a post from the Ram truck mailing list.
Hmmm....... this is sure to scare up some discussion.
John
http://jndneff.home.texas.net/dakota/dakota.html
> Remember the posts where Ram/Dakota owners complained that the
installation of
> 1.7 ratio roller rocker sets didn't seem to give them any horsepower
gain?
>
> Here's a post where a fairly well known western USA small block mopar
engine
> builder claims he actually measured the ratio of the stock Magnum
engine
> 'plain jane' rocker arms and found them to be 1.74 ratio instead of
the
> 'advertised' spec of 1.60 ratio.
>
> Maybe that explains why no measureable gains where seen when the
aftermarket
> 1.70 ratio rollers were installed?
>
> http://www.moparts.org/ubb/Forum1/HTML/022827.html
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