LSM Racing Products' Off-Head Valve Spring Compressor is an ultra-rigid, heavy-duty Valve Spring Compressor in a lightweight package machined from billet aluminum. The jaw capacity is 8-3/8" with a throat depth of 5-1/2" which is enough for even the hard-to-fit Big Chief and Hemi heads. The spring cage is desgined to work perfectly with all popular small to large diameter valve springs. Tapered flange retainer housing is .850" to 1.650" and easily compresses springs to 1,000 lbs. Dual adjustability allows for perfect positioning and easy access to both valve and spring. 

The Speed Handle is removable, and a battery powered drill driver with socket can be used to make it easier and faster for bigger jobs. The Speed Handle can also be used on other LSM spring compressors.