CM Grind Cam Shaft for Zongshen 625

CM grind cam for the popular Zongshen 625cc single cylinder engine ground by DynoCams in North Carolina. The valve lift with stock 1.45:1 ratio rocker arms is .384". We recommend 54lb single springs, with a billet rod and flywheel. Torque peak for this cam will be around 4,500rpms.

Use big block clone springs with the GB620 engine. 

*Keep checking back with Big Block Clones because we have performance parts coming for this engine!