BRAND NEW PART # 4097 QUICK INSTALL PUSHRODS/TUBE KIT Strongest Quick Install pushrod on the market Strength and rigidity of Quick Install pushrods are second only to heavy-duty one-piece pushrods Tube material starts out as 7/16″ rod OD, then gets turned down to 3/8″ OD leaving heavy duty 7/16″ – 20 threads for the base and jam nut 0.134″ wall thickness Jam nut slides up the pushrod Base then loosens up into the pushrod to allow Quick Install access Individual length exhaust and intake pushrods Install without the removal of rocker covers Also included in the kit are four chrome lower tubes and clips. Use in conjunction with factory inner tubes, covers, caps, springs and washers NOTE: Correct pushrod/lifter adjustment requires starting with fully pumped up lifters. NOTE: Quick Install pushrods have 7/16″ – 20 threads per inch. 0.050″ adjustment per turn. Two turns = 0.100″.