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MerCruiser 225-255-325
"The Blue Water Engine"

MerCruiser 225 Specs

Engine:
225 horsepower
eight cylinder V-8
valve-in-head
302 cu. in.
4" bore; 3" stroke
8.5:1 compression ratio
5 main bearings
hydraulic valve lifters
recommended rpm: 3800-4200
4-barrel carburetor
electric automatic choke
regular gasoline
water-separating fuel filter
right / left hand rotation available
12-volt, 42-amp marine alternator
40-amp circuit beaker
dual water pump system
hydraulic transmission system
(choice of direct drive through 3:1 reduction gear ratios in both conventional and close-coupled V-drive configurations)
transmission oil cooler
neutral safety switch
4-point adjustable rubber engine mounts

Physical specs:
length: 43 13/16"
width: 30 3/4"
height: 20" (center line)
depth: 9"
total weight: 882 lbs.
Optional Accessories:
freshwater cooling
power-takeoff pulley
prop shaft flange
MerCathode
gearshift and throttle controls
single exhaust system
fuel gauge
speedometer
instrumentation
exhaust riser extensions

> Original 225 Spec Sheet <


MerCruiser 255 Specs

Engine:
255 horsepower
eight cylinder V-8
valve-in-head
351 cu. in.
4" bore; 3" stroke
8.4:1 compression ratio
5 main bearings
hydraulic valve lifters
recommended rpm: 3800-4200
4-barrel carburetor
electric automatic choke
regular gasoline
water-separating fuel filter
right / left hand rotation available
12-volt, 42-amp marine alternator
40-amp circuit beaker
dual water pump system
hydraulic transmission system
(choice of direct drive through 3:1 reduction gear ratios in both conventional and close-coupled V-drive configurations)
transmission oil cooler
neutral safety switch
4-point adjustable rubber engine mounts

Physical specs:
length: 43 13/16"
width: 30 3/4"
height: 20" (center line)
depth: 9"
total weight: 936 lbs.
Optional Accessories:
freshwater cooling
power-takeoff pulley
prop shaft flange
MerCathode
gearshift and throttle controls
single exhaust system
fuel gauge
speedometer
instrumentation
exhaust riser extensions

> Original 255 Spec Sheet <


MerCruiser 325 Specs

Engine:
325 horsepower
eight cylinder V-8
valve-in-head
427 cu. in.
4.25" bore; 3.76" stroke
8.8:1 compression ratio
5 main bearings
hydraulic valve lifters
recommended rpm: 3800-4200
4-barrel carburetor
automatic choke
regular gasoline
water-separating fuel filter
breakerless Thunderbolt CD ignition
right / left hand rotation available
engine and transmission oil coolers
12-volt, 42-amp marine alternator
40-amp circuit beaker
dual water pump system
hydraulic transmission system
(choice of direct drive through 3:1 reduction gear ratios in both conventional and close-coupled V-drive configurations)
transmission oil cooler
neutral safety switch
4-point adjustable rubber engine mounts

Physical specs:
length: 45 13/16"
width: 32 3/8"
height: 20 13/16" (center line)
depth: 9"
total weight: 1146 lbs.
Optional Accessories:
freshwater cooling
ignition shielding
power-takeoff pulley
prop shaft flange
MerCathode
gearshift and throttle controls
single exhaust system
fuel gauge
speedometer
instrumentation
exhaust riser extensions

> Original 325 Spec Sheet <

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