Large alloy pulley for works type engines to GP4 specification. Fits onto non-viscous water pump M20900002 and is larger than standard to stop cavitation at higher end speeds. Developed for competition use on HC or Chevette HS/HSR GP4 cars but may be fitted with correct pulleys to fast road cars. Takes a poly ribbed V-belt. Designed to stop belt failure on high-speed competition engines. Must be bought in combination with Crank Pulley for works engines. Black anodised finish
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Large alloy pulley for works type engines to GP4 specification. Fits onto non-viscous water pump M20900002 and is larger than standard to stop cavitation at higher end speeds. Developed for competition use on HC or Chevette HS/HSR GP4 cars but may be fitted with correct pulleys to fast road cars. Takes a poly ribbed V-belt. Designed to stop belt failure on high-speed competition engines. Must be bought in combination with Crank Pulley for works engines. Black anodised finish
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