The new Wildcat WC946 Non Hemi Cylinder head has short stainless 31/25mm valves with 5mm stems which makes spring upgrades from the factory 26# springs impossible without replacement. Unfortunately, there are currently no longer 31 x 5mm valves currently available in the aftermarket. There is however, a longer 32 x 5mm valve, but it will require you to cut new seat angles to work. These valves are .050 longer, but will still require spring pockets to be cut for proper install height. This kit is for experienced builders. It comes with:
- EC 32mm S.S. 5mm valve
- EC 25mm S.S. 5mm valve
- 36# Dual Valve Springs. 45# dual springs optional
- EC 5mm Titanium Retainers for Dual Springs
- EC 5mm Hardened Lightweight Lash Caps
