The Melling Camshaft LS Class 3 is engineered for GM LS engines without Active Fuel Management (AFM), featuring a 3-bolt mounting design. It offers a duration of 224° intake and 230° exhaust at 0.050" lift, with a valve lift of 0.604" for both intake and exhaust. The camshaft has a 112° lobe separation angle, contributing to a rough idle and enhanced mid to high RPM torque and horsepower. It's recommended for use with manual transmissions or high-stall automatic converters and may require upgrades to the carburetor, exhaust, and ignition systems. Additionally, the reduced vacuum compared to stock may affect power accessories.

Features 

For GM LS engines (Non-AFM)

3-bolt camshaft design

Duration @ 0.050": 224° intake / 230° exhaust

Valve lift: .604" intake / .604" exhaust

Lobe separation angle: 112°

Rough/lopey idle

Strong mid to high RPM performance

Best with manual or high-stall auto transmissions

May need upgrades (fuel, exhaust, ignition)

Reduced vacuum may impact power accessories