Re: RE: RE: questions on roller rockers

From: Bill Arthur (sst_ram@hotmail.com)
Date: Mon Oct 25 1999 - 21:45:33 EDT


If you had 1.7 ratio SB chevy rockers would that work? You dont happen to
know the length required for the pushrods then do you? Thanks.

Bill

>From: "Holloway,Frank T" <Frank.T.Holloway@KP.ORG>
>Reply-To: dakota-truck@buffnet.net
>To: "'dakota-truck@buffnet.net'" <dakota-truck@buffnet.net>
>Subject: DML: RE: RE: questions on roller rockers
>Date: Mon, 25 Oct 1999 07:36:06 -0700
>
>Mike,
>
>A couple of suggestions on roller rockers for ya. The MP roller rockers are
>actually manufactured by Crane. Whether you buy from MP or Crane really
>doesn't matter. These rockers are actually SB Chevy 1.6 rockers. Because of
>this, they take a special pushrod. The pushrod they sell is actually a SB
>Ford pushrod and has a Tip to Tip length of 6.812, the factory Magnum
>pushrod has a Tip to Tip length of 6.900. Do not try to use the factory
>pushrods and use the pushrods supplied with the kit. The only company that
>I
>know that actually makes rockers specifically for the Magnums (not a rocker
>for a different type of engine) is Crower. My suggestion would be to always
>opt. for the higher ratio (1.7/1) unless your cam mandates less lift. The
>higher ratio translates into higher lift at the valve and the and the
>engines with factory cams benefit from this. If during installation, you
>find that the tip of the rocker doesn't ride pretty much centered on top of
>the valve, Crower does sell both longer and shorter pushrods. Your factory
>springs are more than sufficient with the factory cam and shouldn't cause
>any problems with the 1.6 or 1.7 rockers and are more than sufficient up to
>5,500.......
>
> Frank
>
> > -----Original Message-----
> > From: Wisotzkey, Rich [SMTP:Rich.Wisotzkey@gd-wts.com]
> > Sent: Monday, October 25, 1999 6:41 AM
> > To: 'dakota-truck@buffnet.net'
> > Subject: DML: RE: questions on roller rockers
> >
> > Mike,
> > There are a number of good rocker setups to pick from. I am going with
> > 1.6:1 Mopar rocker setup just like Bob Tom did. I'm using these in
> > conjuction with a Hughes cam and set of heavy springs. The DAK is down
> > right now due to not being able to get the JBA Y-pipe to fit. It won't
> > clear the transmission or the right suspension arm mount. Once this is
> > corrected, the rockers and cam are going in. Will let you know how it
> > turns
> > out. (I still owe you a picture anyway. :'B)
> > Rich
> >
> > -----Original Message-----
> > From: Michael Clark [mailto:magnumv8@wt.net]
> > Sent: Saturday, October 23, 1999 5:54 AM
> > To: dakota-truck@buffnet.net
> > Subject: DML: questions on roller rockers
> >
> >
> > Now that my dak is pulling harder and higher in the upper rpm band (I'm
> > shifting at 5200 - 5500) I'm starting to worry about the valvetrain.
>I'm
> > thinking I should upgrade to some good roller rockers, maybe stiffer
> > springs
> > and some hardened push rods. But I don't really know where to start.
> > When
> > you do roller rockers do you change anything else (springs or rods)? I
> > want
> > to make things as safe and reliable as possible for higher revs. So
>what
> > should I do?
> >
> > Thanks,
> > ---Mike, near Houston.--- http://www.mikesdakota.com
> > '93 V8 4X2
> > Houston Area DML Meet Page
> > http://www.geocities.com/motorcity/downs/9221
>

______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com



This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:18:16 EDT