Valve Guide
Intake; Laramie; 0.2776" I.D., 0.5015" O.D., 1.937 Length, 21-SR Type; Replacement Guide For OEM Integral Guide, Use On Cylinder Head with Single Flange On guide, Seal Boss Length 0.360
Valve Guide
Exhaust; Laramie; 0.2776" I.D., 0.5015" O.D., 2.020 Length, 21-SR Type; Replacement Guide For OEM Integral Guide, Use On Cylinder Head with Single Flange On guide, Seal Boss Length 0.360
Valve Guide
Intake; Laramie; 0.2776 I.D., 0.5015 O.D., 1.937 Length, 21-SR Type; Replacement Guide For OEM Integral Guide, Use For cylinder head with Dual Flange On guide, Seal Boss Length 0.334
Valve Guide
Exhaust; Laramie; 0.2780 I.D., 0.5015 O.D., 2.020 Length, 21-SR Type; Replacement Guide For OEM Integral Guide, Use For cylinder head with Dual Flange On guide, Seal Boss Length 0.334