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This GSC Power Division intake/exhaust valve guide is a single manganese bronze replacement 2.1 inches long with .3415in ID, .502in OD, +.001in oversize and a .35in taper. Supplied individually, the guide provides a specific dimensional match for cylinder heads that require this tapered profile and slight oversize to correct wear and maintain proper valve stem clearance.
GSC P-D SBC Intake/Exhaust Valve Guide 2.1in L x .3415in ID x .502in OD +.001in .35in Taper - Single
