Triumph 650 750 HT Steel Racing valve spring kit
This spring kit for Triumph 650 or 750 twins uses specially designed lightened heat treated steel retainers. It includes 4 inner and outer chrome silicon springs, 4 HT steel retainers, and 4 heat treated steel basewashers. The top retainer in these kits have a 25% weight reduction over OEM, allowing a lower cost over titanium retainers.This kit does not include keepers but is designed to use stock keepers.
Camshafts with up to .400" lift at the cam can be used with this spring kit, maximum valve lift .460". Seat pressure is 90# at 1.305" installed height.
The 650 kit can also be used on pre unit and earlier 650 heads. As installed heights vary, please check during installation.