I'd like to change my stock 1.6 rocker arms to 1.7
rollers in my '01 5.9, both for the slight performance
increase and because it will give me something to do.
Of course, cost of the project is always an issue.
Now, I'm cruising through the Crane catalog, and I find
a couple of similarities. Both the Magnum and the SBF
both have pedestal mount rocker arms. Also, both
engines use the same stud conversion kit. With the kit,
both engines can use the same Energizer rocker arms,
and the same push rods. But, the energizer rocker arms
are available in 1.6 ratio only for this application.
But I'm sure with the conversion kit you could use any
Now, in further research through the catalog, I notice
a Crane PN 44746-16 for a SBF, available from Jegs for
$200. This is listed as a 1.7 ratio, pedestal mount,
with stands, rails, and shim kit.
Then, I perused the Jegs catalog for roller type rocker
arms, 1.7 ratio for a pedestal mount SBF. I found PN
778-66878 from Pro-Form. This is apparently a bolt on
application with a needle bearing fulcrum, for $165.
Another advantage is that the pedestal mounts are self
aligning, and don't need guide plates. Therefore, they
don't need hardened push rods.
However, I would expect to need taller valve covers to
clear some of these bigger rocker arms. Do the Harland
Sharps fit under the stock covers?
I'm wondering, is there any reason that these Ford
parts won't fit on a magnum?
Sure, the Harland Sharp rockers are much better. And if
I was racing this truck, I'd spend the $500 and buy
them. But this is a street truck, and the stock rocker
arms will last longer than the rest of the truck. So I
really don't need racing parts, especially when it's
1997 HD FXDWG - Turbocharged!
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