Mercury Quicksilver Parts Guide

385 CYLINDER HEAD ASSEMBLY 938-8M0115140 All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head with 24 N stainless steel intake valves featuring seats treated with a cobalt ‑ chromium alloy for extreme durability and nickel super ‑ alloy exhaust valves for high temperature durability. Heavy duty springs for engine speeds up to 5800 RPM. This fits 385 PT engines featuring upgraded ports for higher airflow. These are for engines with an 8 ‑ bolt intake manifold pattern. This cylinder head features screw ‑ in rocker studs. 385 Performance Tuned Plus Series engine 5.7L L31 Pressure charged automotive & truck engines *NEW* QUICKSILVER BIG BLOCK V-8 CYLINDER HEADS 454/502 CYLINDER HEAD ASSEMBLY 938-8M0115141 All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head with stainless steel valves featuring seats treated with a cobalt ‑ chromium alloy for extreme durability. This cylinder head fits the 454/502 HO Gen V & VI engines featuring rectangular ports for higher horsepower applications using 2.19" diameter intake valves. 1992 ‑ 2000 MCM 454 / 502 HO & MIE 454 Horizon 8.1L CYLINDER HEAD ASSEMBLY - STARBOARD/ RIGHT/AUTO PASSENGER SIDE 900-8M0090760 All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head with stainless steel valves featuring seats treated with a cobalt ‑ chromium alloy for extreme durability. This cylinder head features original design ports for marine, automotive, RV, and most industrial applications. 2000 ‑ 2009 MCM 496 & 496 HO 2000 ‑ 2009 MIE 8.1S Horizon & 8.1S HO 496 HO MPI Plus Series 8.1L Horizon Plus Series 8.1L (L18) RV, truck & industrial applications 8.1L CYLINDER HEAD ASSEMBLY - PORT/LEFT/AUTO DRIVERS SIDE 900-8M0091709 All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the cylinder head with stainless steel valves featuring seats treated with a cobalt ‑ chromium alloy for extreme durability. This cylinder head features original design ports for marine, automotive, RV, and most industrial applications. 2000 ‑ 2009 MCM 496 & 496 HO 2000 ‑ 2009 MIE 8.1S Horizon & 8.1S HO 496 HO MPI Plus Series 8.1L Horizon Plus Series 8.1L (L18) RV, truck & industrial applications 540 CYLINDER HEAD ASSEMBLY 938-8M0115142 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 fits the 540 Mag Bravo 4V engines featuring rectangular ports for high torque applications using 2.19" diameter intake valves. 540 Mag Bravo 4V Plus Series 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. HP 500 & 500 EFI 540 Mag Crate Engine *NEW* QUICKSILVER CYLINDER HEADS Quicksilver Product Guide 357 QUICKSILVER® REPOWER