This GSC Power Division manganese bronze intake/exhaust valve guide is a single 2.1in long guide with .3415in ID and .502in OD and a +.003in oversize OD. Supplied individually, it provides a specific oversize option for engines requiring bore correction or refreshed valve-to-guide fit, useful for selective repairs where only certain guides show wear.
GSC P-D SBC Manganese Bronze Int/Exh Valve Guide 2.1in L x .3415in ID x .502in OD (+.003in) - Single