New
Introducing the Package-Neo: an advanced shimless bucket solution designed for competitive racers seeking a performance edge. This kit features our cutting-edge 244HV high-velocity camshafts, which incorporate a 34mm shimless bucket system. This design enhances profile velocity and optimizes power delivery across the rev range, resulting in increased torque and top-end horsepower. The reduced duration ensures sharper throttle response and improved drivability, making it a superior choice for those aiming to dominate at the track.
- This package includes:
EXTREME RACING
SERIOUS ENGINE UPGRADE
FULL KIT
244HV-B
268°/280° | 11.0mm/11.0mm Valve Lift
Suits 72mm+ turbo making 1200+hp. Retains good throttle response with NVCS. Will support 10,000RPM and 60+psi of boost.Â
Designed for the Kelford shimless Neo package only. Requires extensive head machining to make it work.
Need 244HV-A click here
KVS244-BT, Extreme Beehive Valve Spring and Titanium Retainer kit for Nissan RB25 Neo engines, using Kelfords shimless bucket package. Designed for extreme boost and high RPM racing engines. Made from ultra clean Silicon Chrome spring steel with a higher fatigue resistance compared to other spring steels. Heat treating and post processing is the highest quality available. High frequency spring design to reduce spring surge at high operating RPM. The retainer is designed for shimless set ups, does not house a shim. kit is designed for the most powerful RB engines on the planet.
- 110lb seat pressure at 36.0mm installed height.
- 230lbs at 11.0mm valve lift. Coil bind at 22.0mm. 13.0mm max lift.
- Includes spring seats to set the correct spring installed height.
Cam Follower 34mm x 6.5mm.
- Full set x 24
VAL-244-IN-12
FERREA +1.00MM NISSAN RB25 NEO “CUSTOM” INTAKE SET (Shimless) 35.15mm, 5.98mm, 103.90mm, 6.20mm. Cut seat to achieve 45.10mm-45.40mm tip height.
VAL-244-EX-12
FERREA +1.00MM NISSAN RB25 NEO “CUSTOM” EXHAUST SET (Shimless) 30.65mm, 5.96mm, 104.35mm, 10.1mm. Cut seat to achieve 49.00mm-49.30mm tip height.
Nissan 6° Radius Bead lock
Manganese Bronze Valve Guides 10.03mm O/D 5.95mm I/D with Stopper
Stem 6mm. Guide OD 10mm. Seal OD 12.6mm. Polyacrylic.
Stem 6mm. Guide OD 10mm. Seal OD 12.6mm. Viton.