Baisley Hi-Performance offers a roller tip rocker arm conversion for Harley® engines that dramatically reduces valve and guide wear. Baisley’s modifies the stock rocker arms by adding the roller tip to it. These modifications are performed to the original equipment rocker arms, which you would supply to us. Baisley’s can also change the rocker ratio and correct the rocker arm geometry for high lift applications (valve length modification and spacer plates required; call for specifics).
The Oil Pressure Relief Valve is designed to limit the oil feed pressure at higher engine rpms, primarily to reduce excessive oil volume from being pumped to the top end. However, the factory-installed valve body does not have a concentric taper to seal on, and does not properly seal oil pressure when operating below the blow-off point (lower engine rpms). Baisley Performance’s Precision-Ground Oil Pressure Relief Valve has a concentric taper that is designed to seal the oil pressure below the blow-off point. This enhances and stabilizes the oil pressure at idle, and forces the oil to take the correct path to the critical areas of the engine; like the tappets, cam chain tensioners, piston cooling jets, and the top end.
A. Baisley® Hi-Performance LMR-2: 6.2 lbs of Seat Force, 14.2 lbs fully compressed. Baisley® springs offer increased seat pressure and overall spring force. Baisley® springs operate in a progressive manner, and are precision ground to exact lengths. #626-002B. Baisley Hi-Performance LMR-4: 7.0 lbs of Seat Force, 16.7 lbs fully compressedBaisley Hi-Performance springs operate in a progressive manner, and are precision ground to
exact lengths. LMR-4 is best for use in large displacement engines with upgraded oil pumps
and aggressive cams.#626-004