GSC P-D Ford EcoBoost 3.5L 6 Cyl Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single - 3018.003-1

GSC P-D BMW M3 E36 Manganese Bronze Intake Valve Guide Stopper Style +.001in Oversize OD - Single - 3056.001-1

GSC P-D BMW M3 E36 Manganese Bronze Intake Valve Guide Stopper Style +.003in Oversize OD - Single - 3056.003-1

GSC P-D GM 1.95in L x .341in ID x .5022in OD Manganese Bronze Intake/Exhaust Valve Guide - Single - 3077

GSC P-D EcoBoost 2.3 4Cyl Manganese Bronze Intake OR Exhaust Valve Guide - SET OF 8 - 3017-8