BTR CHROMOLY ONE-PIECE PUSHRODS - 8.400 LONG - 3/8 DIAMETER - .080 WALL - SET OF 16 
BTR's Chromoly One Piece Pushrods are available in 5/16", 11/32" and 3/8" diameter, .080" wall, and your choice of length in singles, 8 piece, and 16 piece sets!
These one-piece precision formed pushrods are constructed from SAE 4130 chromoly tubing, centerless ground to exacting tolerances, and case hardened to Rc 60.  The ball ends are machined to a tolerance of plus or minus .001in and the pushrods are laser-etched with the part number and specifications on a black oxide finish. 
NOTE- It is imperative to measure for pushrod length using the correct method - NOT SIMPLY OVERALL LENGTH!