or severe duty stainless steel valves leak-free fully machined valve cover ... components,like manley stainless steel valves are used as your assurance of ... material high density cast iron valve seats integral intake hardened steel ... exhaust valveguides integral cast iron valve spring seats machined for 1.250/1.550 ... springs stepped valve size 1.940 windsor jr or 2.020 ... 2 models forged stainless steel valves with swirlpolished heads ring band- ... style seals 1 2 models valve springs manley 7° chrome moly retainers ... /hyd roller hydraulic solid/hyd roller valvedimensions bare 1.94 x 1.600 11/32 1. ...