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Free floating rocker modification question


WhiteLX

New Member
Joined
Sep 17, 2007
Messages
44
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Age
46
Location
So Cal
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9L
Transmission
Automatic
I have the aluminum spacers to perform the free floating rocker modification. According to Pat Kuntz, http://www.therangerstation.com/tech_library/Kunz_Korner.htm, the rocker arm bore should be opened up during this modification.

1. Is this really necessary? Has anyone performed this mod and not opened up the rocker bores?
2. How does one go about opening up the bore? Use a ball hone?
 

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