MARINE

Cast Iron & Aluminum 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 all feature Extreme Duty Inconel exhaust valves and Hardcore spring packages. Special hardened valve seats are standard for the most demanding usage.

BIG BLOCK CHEVY
MERLIN OVAL PORT Cast Iron Cylinder Heads
Part # Application Intake Valves Spring Specs Max Lift Chamber Price Pair Buy Now
030040M-1 Hydraulic 269cc Manley 1.550" Single 100# Seat N/A 119cc $2352.72 Buy Now
030040M-2 Solid/Hyd. Roller 269cc Manley 1.550" Dual 150# Seat .650" 119cc $2383.10 Buy Now
MERLIN RECTANGULAR PORT Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
030620M-2 Solid/Hyd. Roller 320cc Manley 1.550" Dual 150# Seat .650" 119cc $2383.10 Buy Now
030630M-2 Solid/Hyd. Roller 345cc Manley 1.550" Dual 150# Seat .650" 119cc $2383.10 Buy Now
MERLIN III Aluminum Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
020650M-2 Solid/Hyd. Roller 310cc Manley 1.550" Dual 150# Seat .650" 119cc $3199.66 Buy Now
020650CM-2 Solid/Hyd. Roller 310cc Manley 1.550" Dual 150# Seat .650" 119cc $4249.66 Buy Now
020660M-2 Solid/Hyd. Roller 350cc Manley 1.550" Dual 150# Seat .650" 119cc $3199.66 Buy Now
020660CM-2 Solid/Hyd. Roller 350cc Manley 1.550" Dual 150# Seat .650" 119cc $4249.66 Buy Now
SMALL BLOCK CHEVY
S/R Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
043600M-1 Hydraulic STD Manley 1.250" Single 100# Seat .560" 76cc $1606.18 Buy Now
043610M-1 Hydraulic STD Manley 1.250" Single 100# Seat .560" 67cc $1606.18 Buy Now
S/R TORQUER Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
042660M-1 Hydraulic 170cc Manley 1.250" Single 100# Seat .560" 67cc $1637.32 Buy Now
042670M-1 Hydraulic 170cc Manley 1.250" Single 100# Seat .560" 76cc $1637.32 Buy Now
SPORTSMAN II Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
011150M-1 Hydraulic 200cc Manley 1.250" Single 100# Seat .560" 64cc $1736.82 Buy Now
011150M-2 Solid/Hyd. Roller 200cc Manley 1.437" Dual 125# Seat .600" 64cc $1885.98 Buy Now
011250M-1 Hydraulic 200cc Manley 1.250" Single 100# Seat .560" 64cc $1736.82 Buy Now
011150M-2 Solid/Hyd. Roller 200cc Manley 1.437" Dual 125# Seat .600" 64cc $1885.98 Buy Now
012150M-1 Hydraulic 200cc Manley 1.250" Single 100# Seat .560" 72cc $1736.82 Buy Now
012150M-2 Solid/Hyd. Roller 200cc Manley 1.437" Dual 125# Seat .600" 72cc $1885.98 Buy Now
012250M-1 Hydraulic 200cc Manley 1.250" Single 100# Seat .560" 72cc $1736.82 Buy Now
012250M-2 Solid/Hyd. Roller 200cc Manley 1.437" Dual 125# Seat .600" 72cc $1885.98 Buy Now
SMALL BLOCK FORD
WINDSOR JR. Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
053030M-1 Hydraulic 180cc Manley 1.250" Single 100# Seat .560" 58cc $1662.26 Buy Now
053030M-2 Solid/Hyd. Roller 180cc Manley 1.437" Dual 125# Seat .600" 72cc $1854.96 Buy Now
WINDSOR SR. Cast Iron Cylinder Heads
Part # Application Intake Valve Spring Specs Max Lift Chamber Price Pair Buy Now
053040M-1 Hydraulic 200cc Manley 1.250" Single 100# Seat .560" 58cc $1699.48 Buy Now
053040M-2 Solid/Hyd. Roller 200cc Manley 1.437" Dual 125# Seat .600" 72cc $1885.98 Buy Now