Valvetrain

Weight: 2.17 Includes Big Axle Tappets. High strength tappet blocks made from CNC machined 7075-T651 billet aluminum. Big axle tappet rollers for improved durability and better tracking on the cam lobe. Powerglide ™ hydraulic tappets provide the closest...

Weight: 2.87 The lightest, strongest roller rocker arms available. 660 bronze bushings. Bearing grade steel roller tip. Comes complete with 4 rocker arms. Jims Rocker Tip Rocker Arm Set (Shafts not included). Fits Big Twin Evolution 1984-1999, Twin Cam...