Eliminate pushrod flex, reduce valve-train harmonics, and increase valve lift. Due to the unstable nature of this 4-valve engine design with 1 rocker arm activating 2 valve springs Feuling highly recommends running one-piece pushrods over quick install adjustable rods to maintain maximum cam/valve lift and reduce valvetrain harmonics and associated hydraulic lifter issues. Quick install pushrods are said to be easier to use, however they cannot compare to a solid pushrod for strength and durability.
• 4130 Chromoly one-piece pushrods with swedged formed ends
• Heavy duty 7/16 diameter tube with 0.165 wall thickness
• Precision concentricity, heat treated with a black oxide finish
• Designed to work with the factory base circle camshaft dimensions
• These pushrods work with all Feuling, stock and SE Milwaukee Eight camshafts
• -0.040 shorter for engines with decked cylinder heads and running thinner head gaskets
Note the factory head gasket is 0.050 thick and the SE and majority of aftermarket head gaskets are 0.040 thick, aftermarket 0.030 head gaskets are also available.