KILL DEVIL FULLY LOADED 18MM ORING HEADS
Our popular O-ring heads start off with a 100% brand new heavy duty casting made just for us, to our exacting specifications. We have improved several key design flaws with the factory cylinder heads - KDD castings incorporate a higher nickel content and thicker deck surface, for a more rigid casting, and hardened alloy valve seat inserts (to prevent cracking of the valve seats like the factory heads are notorious for). Our 6.0 heads have more material around the injector bores, and reinforced injector bolt holes to eliminate cracking in the injector bore. We receive our castings bare, then perform all finish machine work in house, including our proprietary O-ring design.
- Track tested, proprietary O-Ring setup.
- 32 Tungsten Carbide hardened valve seat inserts to prevent cracking.
- 32 press in iron matrix valve guides, honed to size for superior lubrication retention and ultimate longevity.
- Upgraded heavy duty casting, thicker than OE.
- Pressure tested and vacuum checked.
- Blueprinted to proprietary valvetrain geometry, to alter valve height and valve recession for maximum reliability and longevity.
- New USA made high quality valve springs, retainers, locks, valve stem seals, freeze plugs, glow plug sleeves and injector sleeves.
- Valve spring pressure is tested and balanced ensure consistent spring pressure across all valves
- The same industry leading O-ring design survived Diesel Power Magazine’s DPC torture test, claiming victory in 2016 and 2017.
- 2 cylinder heads included with purchase
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