JEGS 514080 Small Block Chevy Cast Iron Vortec Cylinder Head Size: 120

Small Block Chevy Cast Iron Vortec Cylinder Head170 cc Intake Ports64 cc Combustion Chambers1.94 in. Intake 1.50 in. Exhaust Valves1.250 in. Valve Springs 0.475 in. Max Lift3/8 in. Rocker Studs – Sold Individually JEGS Cast Iron Vortec Cylinder Head for Small Block Chevy with a 170cc Intake RunnerMaterialCastingIronValve GuidesIntegralValve SeatsSteelValve Train – Rocker Stud Size3/8 inch-24Guide Plates – Not Included – Pushrods5/16 inch Hardened Must Check Length – Spring Retainers – Chrome Moly Steel 7 DegreeValve Locks7 Degree HDSpring Locator – I.D. Locator – 1.253 inch x 0.120 inch – Valve SpringsSpecificationsPressureSpring O.D.Type – Max Lift – Seat Load – Solid Height1.250 inch – Single0.475 inch80# @…