Melling 22308 Class III Hydraulic Roller Camshaft for GM LS Engines

The Melling 22308 is a Class III performance camshaft designed for GM LS engines including 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L displacements. This hydraulic roller camshaft delivers a rough idle quality with good mid to high rpm torque and can be used with a manual transmission or automatic transmission equipped with a high stall torque converter.

Key Specifications:

• Intake Duration at .050-inch Lift: 238 degrees
• Exhaust Duration at .050-inch Lift: 242 degrees
• Intake Valve Lift: 0.595-inch (15.11mm)
• Exhaust Valve Lift: 0.595-inch (15.11mm)
• Lobe Separation Angle: 112 degrees
• Operating RPM Range: 2,200-5,400 RPM
• Duration at Advertised: 296 degrees (intake and exhaust)

Performance Characteristics:

As a street/strip camshaft, the Melling Class III offers excellent performance for enthusiasts seeking aggressive sound and increased power. This non-AFM (Active Fuel Management) compatible hydraulic roller design requires supporting modifications including upgraded valve springs, lifters, and potentially timing cover changes for VVT delete applications. The 112-degree lobe separation angle provides a balance between low-end response and top-end power while maintaining adequate vacuum for power accessories.

Application Notes:

This camshaft is specifically designed for Gen III and Gen IV LS engine platforms. Installation requires hydraulic roller lifters, appropriate valve springs with correct seat pressure and installed height, and proper break-in procedures. Not recommended for engines used primarily for towing or heavy hauling due to the aggressive profile and higher RPM operating range.