Supertech Toyota Manganese Bronze Intake/Exhaust Valve Guide 5.5mm Stem - Set of 6

This set includes six Supertech manganese bronze valve guides, each designed for a 5.5mm valve stem. Manganese bronze is a well-known material for valve guides because it offers good wear resistance and lubricity, which helps keep your valves moving smoothly and prevents premature wear in the cylinder head.

These guides are a solid option if you're rebuilding or refreshing the cylinder head on your Toyota engine. Manganese bronze is chosen for its ability to handle the heat and friction found in the valve train. Proper valve guide function is key to maintaining good compression and preventing oil from leaking past the valve stem into the combustion chamber.