Supertech Performance Bronze Valve Guides for Honda - Acura K Series (K20 & K24) Engines
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Supertech Performance Bronze Valve Guides for Honda / Acura K Series (K20 & K24) Engines 8x GDE-HK55-I - Supertech Performance Intake Valve Guides 8x GDE-HK55-E - Supertech Performance Exhaust Valve Guides Honda / Acura K20 K20A K20A2 K20A3 K20Z1 K20Z3 K24 K24A2 K24A4 K24A8 Fitment. *Price listed is for a Set of 16 Valve Guides* Precision-machined from High Quality Manganese Bronze material. These guides in combination with our low friction Black Nitride Valves provides the best solution for performance and durability. Exhaust guides for high powered engines that need a better thermal transfer coefficient, We use a Copper Alloy. Copper has about 3 times higher thermal transfer than Manganese Bronze.