RE: more on roller rockers

From: Jamie Calder (jcalder3@cfl.rr.com)
Date: Tue Feb 13 2007 - 00:07:36 EST


 So as I keep scanning the net, the more question I have on RR's. What I
have now are Comp Cams rr's for a Ford V8 289-302-351W. I guess it was
common to use Chevy and Ford rockers on Mopars because of the limited
availability of Mopar specific rr's. I guess there's more Mopar options
now.
As I googled, I've read how Chevy or Ford rockers put a side load on the
valve stems and wear out the valve guides quickly due to the stud to rocker
tip distance. Magnum is 1.387", Chevy is 1.420, 350 Ford is 1.508. However
I didn't find the 351W distance which is what the rockers I have are for.
Comments / suggestions?

-----Original Message-----
From: owner-dakota-truck@bent.twistedbits.net
[mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Bernd D.
Ratsch
Sent: Monday, February 12, 2007 11:48 PM
To: dakota-truck@dakota-truck.net
Subject: DML: RE: RE: RE: Aligning yokes for lifters

Adjustable are really recommended for engines with aftermarket camshafts -
allows for adjustability (valve lash adjustments for best performance). Non
adjustable are really good for stock applications that just want a little
more pep out of the stock cam/valvetrain.

The myth of adjustable rockers having to be readjusted all the time - just
that...a myth. Once they're broken in and readjusted (after initial warm up
cycle) - there's no need to readjust them at all. I have over 30K miles on
my adjustable rockers - only had to readjust them once (after the initial
engine overhaul).

- Bernd

-----Original Message-----
From: Jamie Calder [mailto:jcalder3@cfl.rr.com]
Sent: Monday, February 12, 2007 10:30 PM
To: dakota-truck@dakota-truck.net
Subject: DML: RE: RE: Aligning yokes for lifters

I noticed Harland Sharp carries adjustable and non-adjustable rockers for
Magnum engines. What are the pro and cons for each of them?

-----Original Message-----
From: WiLieR[SS] [mailto:waffle787@gmail.com]
Sent: Monday, February 12, 2007 8:49 PM
To: dakota-truck@dakota-truck.net
Subject: DML: Aligning yokes for lifters

I am waiting on a set of harland 1.7 roller rockers as well.

WiLieR



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