
The steel-core version of Hamilton’s towing grind, for valvetrains carrying heavy spring pressure. Massive torque, better spool and strong power to 4,000 rpm — Hamilton calls this one the best choice for most builds. 49-state EPA compliant.
A steel camshaft cannot run against bare cast iron.
1989–2007 Dodge Ram 5.9L Cummins and 2007.5–2018 Ram 6.7L Cummins flat-tappet engines. Verify piston-to-valve clearance and supporting valvetrain before ordering.