March 1, 2024

Stage 1 Camshaft, Hydraulic Roller

Big Block Chevrolet, Gen VI, 1.950″ Journal

Coming Soon!

The Allmond Marine Stage 1 is an evolution of the 168731 cam

The intake event (solid line) is optimized for improved dynamics while keeping the valve events the same. Higher max lift and 1.5° of asymmetry for improved volumetric efficiency with modern cylinder heads

LSA of 113.5° gives equivalent valve events (EVO, EVC, IVC, etc.) to the 168731 cam’s 112° LSA

Adv. DurationDuration @ 0.050″Duration @ 0.200″Valve Lift @ 1.74:1Lobe Sep Angle
Intake2902271480.619113.5
Exhaust2962361540.611

Valvetrain Requirements

For this cam, consider the valvetrain requirements below. Use the Valvespring Estimation Tool to calculate Valvetrain Effective Mass. If you must exceed this value, contact Allmond Marine.

Stage 2