Supertech Valve Guides 4B11 (Intake)

Supertech Manganese Bronze Valve guides are precision-machined from a high quality magnesium alloy. These guides in combination with low friction nitrated valves provide the best solution for performance and durability. When using dissimilar metals, such as stainless steel valves, you want to have the protection of the "bronze" guide, to prevent premature wear and to help reduce friction levels and to prolong overall valve and valve guide longevity.

* Note: These are (8) intake valve guides & are oversized *

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