Crane makes the 1.7 Alum RR kit.
Personally I'd spend for an adjustable pushrod. Determine length required
for best geometry, then order up a set with the correct ends and length.
Some of the R/Ters have used "some" Mustang pushrod with their cams.
HTH
TonyC
-----Original Message-----
From: Bob Tom <tigers@bserv.com>
To: dakota-truck@dakota-truck.net <dakota-truck@dakota-truck.net>
Date: Sunday, August 15, 2004 5:37 PM
Subject: DML: Pushrods for high lift cams or 1.7 rockers
>
>I am need of some input from those DML members who are
>knowledgeable in this area.
>
>I've been searching our archives, other forum archives and
>on Google the past few days.
>
>I discovered last Friday that I am in need of replacing my pushrods.
>I am running a high lift cam (0.520/0.544 @ 1.6:1 ratio) with
>the pushrods and roller rockers which are in the MP mechanical
>roller rocker arms kit P5249800 (made by Crane Cams).
>
>The stock pushrods for our magnum engines are 5/16" by
>somewhere between 6.915 to 6.935 inches. The pushrods
>with the MP kit are 3/8" by about 6.812". As you can see,
>valvetrain geometry could probably become a serious issue
>at high rpms (above 5500).
>
>I've also found that MP has a 1.7 roller rocker kit but I have not
>been able to find out who makes them nor if they include
>longer pushrods than those in their 1.6 kit. Has anyone
>information about the pushrods in this 1.7 kit?
>
>I've got a two week break before my bracket, point races start
>up again so I'm tight for time to find suitable pushrods while
>still using the MP 1.6 roller rockers, get them up here to Ont.,
>and do the install.
>
>I just found that Crane sells a set of 16 heat treated, 4130 chromemoly
>pushrods that are 3/8" by 6.875". I'm leaning towards these because
>of the longer lengths..Would this be a better pushrod match for my app.?
>
>TIA. Bob
>
>
This archive was generated by hypermail 2b29 : Wed Sep 01 2004 - 00:53:41 EDT