KB89326 Kit $515 Roller Rocker Arm Assembly (KB9342 Rocker stops included) '67 up 400-430-455 Price includes shipping to any continental US address There are no broken or worn out parts No issues or problems with these KENNE-BELL Parts
Yes, they will work with 3/8" adjustable pushrods, BUT, if you are going to install roller rockers, you should re adjust. If you look at the instructions for roller rockers, http://www.taperformance.com/PDF/Roller_Rockers_Installation.pdf You'll see that when adjustment is complete, the rocker adjuster should be within one thread of flush with the bottom of the rocker. This maintains ideal push rod geometry. If you buy them, make all the adjusters flush, then install them. Then go through the valve adjustment procedure adjusting your push rods for proper pre load. Then remove the push rods and measure them all. Then order a set of the proper length 5/16" push rods. I'm going to say this also applies to the KB Roller Rockers.