marine

ASSEMBLED
CYLINDER HEADS

BIG/SMALL BLOCK CHEVROLET & SMALL BLOCK FORD

World marine-spec cylinder heads offer high performance port designs and large runners for fantastic water performance. They are assembled with Manley Severe Duty intake valves and feature Extreme Duty Inconel exhausts and Hardcore spring packages, for the most demanding usage.

BIG BLOCK CHEVROLET
MERLIN OVAL PORT cast iron CYLINDER HEADS
Part # Application Description Intake Runner Valves Spring Specs Max Lift Chamber
030040-1M Hydraulic Assembled 269cc Manley Severe Duty 1.550" Dual 120# Seat N/A 119cc
030620-2M Solid/Hyd. Roller Assembled 269cc Manley Severe Duty 1.550" Dual 150# Seat .650" 119cc
MERLIN RECTANGULAR PORT cast iron CYLINDER HEADS
030620-2M Solid/Hyd. Roller Assembled 320cc Manley Severe Duty 1.550" Dual 150# Seat .650" 119cc
030630-2M Solid/Hyd. Roller Assembled 345cc Manley Severe Duty 1.550" Dual 150# Seat .650" 119cc
MERLIN III aluminum CYLINDER HEADS
020650-2M Solid/Hyd. Roller Assembled 310cc Manley Severe Duty 1.550" Dual 150# Seat .650" 119cc
020660-2M Solid/Hyd. Roller Assembled 350cc Manley Severe Duty 1.550" Dual 150# Seat .650" 119cc
SMALL BLOCK CHEVROLET
S/R STOCK REPLACEMENT cast iron CYLINDER HEADS
043600-1M Hydraulic Assembled Stk Chevy Manley Severe Duty 1.250" Single 100# Seat .560" 76cc
043610-1M Hydraulic Assembled Stk Chevy Manley Severe Duty 1.250" Dual 100# Seat .560" 67cc
S/R TORQUER cast iron CYLINDER HEADS
042660-1M Hydraulic Straight Plug 170cc Manley Severe Duty 1.250" Dual 100# Seat .560" 67cc
042670-1M Hydraulic Straight Plug 170cc Manley Severe Duty 1.250" Dual 100# Seat .560" 76cc
SPORTSMAN II cast iron CYLINDER HEADS
011150-1M Hydraulic Angled Plug 200cc Manley Severe Duty 1.250" Single 100# Seat .560" 64cc
011150-2M Solid/Hyd. Roller Angled Plug 200cc Manley Severe Duty 1.437" Dual 125# Seat .600" 64cc
011250-1M Hydraulic Straight Plug 200cc Manley Severe Duty 1.250" Single 100# Seat .560" 64cc
011250-2M Solid/Hyd. Roller Straight Plug 200cc Manley Severe Duty 1.437" Dual 1250# Seat .600" 64cc
012150-1M Hydraulic Angled Plug 200cc Manley Severe Duty 1.250" Single 100# Seat .560" 72cc
012150-2M Solid/Hyd. Roller Angled Plug 200cc Manley Severe Duty 1.437" Dual 125# Seat .600" 72cc
012250-1M Hydraulic Straight Plug 200cc Manley Severe Duty 1.250" Single 100# Seat .560" 72cc
012250-2M Solid/Hyd. Roller Straight Plug 200cc Manley Severe Duty 1.437" Dual 125# Seat .600" 72cc
SMALL BLOCK FORD
WINDSOR JR. cast iron CYLINDER HEADS
053030-1M Hydraulic Assembled 180cc Manley Severe Duty 1.250" Single 100# Seat .560" 58cc
053030-2M Solid/Hyd. Roller Assembled 180cc Manley Severe Duty 1.437" Dual 125# Seat .600" 58cc
WINDSOR SR. cast iron CYLINDER HEADS
053040-1M Hydraulic Assembled 200cc Manley Severe Duty 1.250" Single 100# Seat .560" 64cc
053040-2M Solid/Hyd. Roller Assembled 200cc Manley Severe Duty 1.437" Dual 125# Seat .600" 64cc