Description Manganese bronze intake valve guide, 0.50 inch diameter and 2.070 inches long. Tapered to reduce obstruction in the intake port and improve flow. These guides are for use with intake valves only, for exhaust valve guides see SKU 304 or 305. Click here for Installation Instructions Fit Note: Intake guide for TR250, TR6, GT6 1968 – 1973, Spitfire 1967 – 1980. 6-cylinder engines require 6 guides, 4-cylinder engines require 4 guides.
