Page 106 - Mercury Repower Guide

*NEW* QUICKSILVER CYLINDER HEADS

385 CYLINDER HEAD ASSEMBLY 8.1L CYLINDER HEAD ASSEMBLY - PORT/LEFT/AUTO
DRIVERS SIDE

938-8M0115140
All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the 900-8M0091709
cylinder head with 24 N stainless steel intake valves featuring seats treated with a All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the
cobalt‑chromium alloy for extreme durability and nickel super‑alloy exhaust valves cylinder head with stainless steel valves featuring seats treated with a
for high temperature durability. Heavy duty springs for engine speeds up to 5800 cobalt‑chromium alloy for extreme durability. This cylinder head features original
RPM. This fits 385 PT engines featuring upgraded ports for higher airflow. These design ports for marine, automotive, RV, and most industrial applications.
are for engines with an 8‑bolt intake manifold pattern. This cylinder head features 2000‑2009 MCM 496 & 496 HO
screw‑in rocker studs. 2000‑2009 MIE 8.1S Horizon & 8.1S HO
385 Performance Tuned Plus Series engine 496 HO MPI Plus Series
5.7L L31 Pressure charged automotive & truck engines 8.1L Horizon Plus Series
8.1L (L18) RV, truck & industrial applications
*NEW* QUICKSILVER BIG BLOCK V-8 CYLINDER 540 CYLINDER HEAD ASSEMBLY
HEADS
454/502 CYLINDER HEAD ASSEMBLY

938-8M0115142 MERCRUISER
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
938-8M0115141 featuring rectangular ports for high torque applications using 2.19" diameter intake
valves.
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 540 Mag Bravo 4V Plus Series engine
cobalt‑chromium alloy for extreme durability. This cylinder head fits the 454/502 938-8M0115143
HO Gen V & VI engines featuring rectangular ports for higher horsepower All new Quicksilver cast iron cylinder head, hardened valve seats press fit into the
applications using 2.19" diameter intake valves. cylinder head using Manley Extreme Duty stainless steel valves for high
1992‑2000 MCM 454 / 502 HO & MIE 454 Horizon temperature durability. This cylinder head features rectangular ports for
MerCruiser High Performance applications using 2.25" diameter intake valves.
8.1L CYLINDER HEAD ASSEMBLY - STARBOARD/ HP 500 & 500 EFI
RIGHT/AUTO PASSENGER SIDE 540 Mag Crate Engine
QUICKSILVER CYLINDER HEAD REPLACEMENT
VALVES

INTAKE VALVE
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
8M0146074
Standard size, Black‑X composite intake valve
GM 3.0L
EXHAUST VALVE
8M0146075
Standard size, Black‑X composite exhaust valve
GM 3.0L
INTAKE VALVE
8M0146076
Standard size, Black‑X composite intake valve
GM 4.3L, 5.7L & 6.2L small block
EXHAUST VALVE
8M0146077
Standard size, Black‑X composite exhaust valve
GM 4.3L, 5.7L & 6.2L small block

2019 Repower Product Guide 93