Seller notes

VALVE GUIDESThis item is for sixteen (16) Elgin cast iron valve guides for SOME Chevrolet big block V-8 engines; see fitment below. P/N (8) 58701S + (8) 59972S. These guides are spiral reamed to help with oil retention and lubrication.Machining is required to install these valve guides. Feel free to message us with any fitment questions..FITMENT INCLUDES366ci (6.0L) 1965-1970402ci (6.6L) 1970-1972427ci (7.0L) 1966-1969454ci (7.4L) 1970-1984GUIDE SPECIFICATIONSMaterial: Cast ironInside Diameter (...

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