Seller notes

ENGINE VALVESThis item is for eight (8) valves (4-intake and 4-exhaust) and (16) hardened valve locks/keepers for GM 3.0L (181ci) OHV 4-cylinder engines used in marine and industrial applications. P/N (4) E-1649B + (4) I-408B + (16) EHC-555. Before ordering, we recommend that you compare your valve measurements to the specifications below. Feel free to message us with any fitment questions.VALVE SPECIFICATIONSHead Diameter (INT/EXH): 1.940/1.600 in.Overall Length (INT/EXH): 4.880/4.901 in.Stem D...

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