Industrial Engines have hardened components for durability.

Vortec 8100, 8.1 liter, big-block V-8 engine incorporates induction-hardened intake valve seats. Camshaft optimizes performance at 1,800 rpm. Small-block Vortec 5700, 5.7 liter, V-8 engine has exhaust-valve seat inserts and induction-hardened intake-valve seats. Vortec 5000, 5.0 liter, displacement engine works with gasoline, liquid propane, and natural gas. Rated 62 hp, Vortec HO 3000 overhead valve engine enables generators to produce 35 kW @ 1,800 rpm using natural gas.