275cc/100% Nozzles - With a slightly larger nozzle than the stage 3 as well as mild body modifications, the Stage 3.5 Powerstroke fuel injector by Unlimited Diesel can support up to 550 HP while being completely streetable and tow as well. This injector works well with a T4 kit and an s369 sxe or s467.7 and Arp head studs are recommended at this level and above. Fuel pressure should be checked also to ensure at least 60 PSI. Custom Tuning required for optimal performance. Fits1994-2003 7.3L Ford Powerstroke diesel engines
Each Unlimited Diesel Performance Powerstroke fuel injector:
- Includes NEW Tungsten coated Plunger & Barrel assemblies
- Includes NEW Nozzles
- Has o-rings replaced, and new nozzle springs installed
- Solenoids are all inspected for proper resistance
- Cores thoroughly cleaned using a Pro Ultrasonics cleaning unit for a super clean injector body.
- Injector clearances reset to proprietary specs
- Is bench tested at a full range of RPMS and oil pressures
- Is backed by Unlimited Diesel's limited lifetime warranty
Common Issues that require Powerstroke fuel injector replacement:
- Plugged Nozzles
- Blowby from Nozzle Pintle
- Scored Plungers and Barrels
- Broken Plunger Spring
- Broken Nozzle Spring
- Blown Internal Orings
- Blown External Orings
- Scored Poppet Valves
- Worn Armature Clearances
- Armature contacting solenoid
- Loose adapter plate screws
- Loose armature screw
- Shorted/open solenoid
*Fuel injectors are sold in sets of 8. Call for single fuel injector pricing. We use ONLY New Alliant Power External Orings, beware of cheap orings. We have had multiple customers call us with competitor products using inferior orings that have failed.
Core charge will be refunded provided your existing Powerstroke injectors do not have any external damage and are rebuildable.
