Valve Spring Kit Nissan RB26 DET | SPRK-M1007D/RB | Supertech

Supertech High Performance Engine Valves, Springs, Valve Accessories, Pistons and Block Guards Supertech valve spring kit SPRK-M1007D / RB Nissan RB26 DET Dual valve spring kit Nissan In: 41,73kg/40,7mm (In: 92@40,7) Dual valve spring kit inlet: 41,73kg outlet: 37,19kg/40.7 (24) SPR-M1007D / RB + (24) RET-NRB60 / TS With the help of Supertech valve springs & titanium valve spring retainers, higher RPM/s can be run. It also eliminates valve flutter at high RPM/s. At high RPM/s, the rocker arms can break and the valve springs can jam. This can lead to engine damage! The Supertech valve springs have an extra adjusted spring rate. Advantages: The valve train becomes lighter thanks to the titanium valve spring retainers The motor revs up faster Higher motor RPM/s can be run The valve train becomes more stable during power increases We recommend our Supertech black nitrided intake valves and Inconel exhaust valves with all Supertech valve spring kits. Likewise, we offer the full range of Supertech: Valve keepers, mechanical tappets (rigid tappets) with matching shims and forged pistons. Make: Nissan Fits: Nissan RB26 DET Outer spring external diameter: 28,10mm Outer spring internal diameter: 20,00mm Inner spring external diameter: 20,00mm Inner spring internal diameter: 15,20mm Pressure valve seat: In: 41,73kg/40,7mm Pressure seat: In: 105,23kg/11mm Max. lift: 15,30mm Coil bind (under stress): 24,70mm Rate in lbs./mm: 12,50 retainers: RET-NRB60/TS Seat locator: Factory seat Supertech/s valve springs are made of an extreme pure chrome-silicon-vanadium-steel alloy to assure a very good durability for performance motors with high revolutions. They are developed with the use of computer simulations to prevent material fatigue under extreme conditions. The holder are made of a certified titanium alloy and CNC milled for the perfect fit to provide a long durability. Please note: This product is a high quality performance replacement for the original Nissan part.