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Mercury Quicksilver - Big Block V-8 540 Cylinder Head Assembly - Fits HP 500/500 EFI, 540 Mag Crate Engine - 938-8M0115143
All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head using Manley Extreme Duty stainless steel valves for high temperature durability. This cylinder head features rectangular ports for MerCruiser High Performance applications using 2.25" diameter intake valves. Fits: HP 500 & 500 EFI 540 Mag Crat…
All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head using Manley Extreme Duty stainless steel valves for high temperature durability. This cylinder head features rectangular ports for MerCruiser High Performance applications using 2.25" diameter intake valves. Fits: HP 500 & 500 EFI 540 Mag Crate Engine
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All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head using Manley Extreme Duty stainless steel valves for high temperature durability. This cylinder head features rectangular ports for MerCruiser High Performance applications using 2.25" diameter intake valves. Fits: HP 500 & 500 EFI 540 Mag Crate Engine