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08-10 Ford 6.4L Powerstroke DDP 6 Hole 60% Over Injector Nozzle Set

The DDP 64-660NZ 6 Hole 60% Over Nozzle Set for your 2008-2010 Ford 6.4L Powerstroke is designed to increase power and performance on your truck. Intended for high perormance applications only, not recomended for vehicle towing frequently or heavy. It is your responsibility to ensure you have the appropriate modifications to take advantage of the fuel these nozzles can deliver without causing engine damage.

Use of a pyrometer to monitor exhaust gas temperatures is mandatory. Additional vehicle modifications should include (but are not limited to) single modified or dual high pressure fuel pumps, lift pump upgrade, upgraded turbochargers, custom tuning, head studs, etc. Included with the nozzle set are 8 new injector sealing washers. 


  • 60% Over 
  • Supports About 750 RWHP
Note: Due to the size of this nozzle set it is highly recommended that the injectors are tested before and balanced after installation. If there are underlying issues with your injectors, it will only worsen after the nozzles are installed.

Note About Injector Hole Count: As a general rule of thumb, the more holes you have the smaller they will be, creating better atomization and a better burn. This means that the 6 hole injector nozzles will be more aggressive than the 7 hole nozzles. This makes the 6 hole nozzles ideal for higher horsepower trucks. 

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