Screamin Eagle Pro Rocker Arms 1.725:1 Ratio

Manufactured from the forging used for Original Equipment rocker arms for enhanced integrity, these Screamin’ Eagle® Rocker Arms feature a lift ratio of 1.725:1 verses the stock ratio of 1.65. The larger ratio will increase valve opening to enhance power output on larger displacement engines. As with all performance products, these Rocker Arms should be installed by a qualified technician to ensure appropriate clearances between valves and pistons. Kit includes four rocker arms. Fits Harley-Davidson '84-'99 Evolution 1340-equipped models, '86-later XL models, and '99-later Twin Cam-equipped models. For race application only. As with all performance products, these Rocker Arms should be installed by a qualified technician to ensure appropriate clearances between valves and pistons.