Holden Alloytec V6 Springs | Titanium Retainers KVS39-BT supra however we are currently developing

however we are currently developing a few harness options (subscribe to our newsletter for updates)

The StraightGate50 is simple to use and packed with performance

This new generation coil kit has been specifically designed as an upgraded direct drop-in replacement for the Cosworth 2 litre 'YB' engine

This is PRP's Big hitter

Wastegate provision to suit BOTH 45mm and 44mm Turbosmart

Holden Alloytec V6 Springs | Titanium Retainers KVS39-BT supra however we are currently developing70Lb seated @38. 0mm, 166lb @11mm lift, Bind @ 24. 9mm "Holden Allytech KVS39 BT Progressivly wound 'Pacaloy' Beehive Valve spring set with titanium retainers. Engineered to match our camshafts for the ultimate in quality, performance and reliability. 38. 0mm Installed height 70lb closed pressure. 166lb at 11mm lift. 24. 9mm coil bind height."