585 Hydraulic Roller for LS Sloppy Stage 2 E1840P. Year: 1997-Up Fit For: Chevy Engine: LS-Series Camshaft Type: Hydraulic Roller RPM Range: 2200 to 5400 RPM Intake Valve Lift. 050: 230° Lobe Separation: 112° Intake Centerline: 108° Cam Gear Attachment: 3-Bolt Usage: Performance Notes: Not for use with AFM/DOD.If you don't receive package over 30 business workdays, please notify us. We will be happy to resolve any issues you may have in a cordial and friendly manner. We will reply every message and solve the problem within 24 hours (except holiday). Feedback is very important to us.