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6 pair new (never run) test mounted a few only, Comp Cam sbc #4835 adjustable welded push rod guide plates welded in a gig for Ford 300 inline 6 heads, I am throwing in the $25 price of the gig welding, Picture 189 is to show how they mount, head & stud not included. They are for 7/16” screw in rocker studs and are for 5/16” push rods, ONE TIME LOWER PRICE $35 + shipping.
If your building a early 300 head with pressed in studs and you want to install 7/16" screw in rocker studs you need this setup for proper push rod guidance. You can use ether 7/16 x 7/16 or 7/16 x 3/8 screw in studs. They have been gig welded for correct stud alignment. They are for 5/16" stock or heat treated chrome moly push rods. New never used.