SPORTSMAN II

SMALL BLOCK CHEVROLET

CAST IRON CYLINDER HEADS

Continuously improved since its 1987 introduction, the Sportsman II is still the industry's most popular cast iron high performance head. Featuring RightCast® 200cc intake runners, Fast-Burn chambers and your choice of angled or straight plugs, they're good for 30-70 horsepower increases right out of the box. They are the aftermarket's only 50-state emissions legal cast iron high performance cylinder head (E.O. #D-343-1). You should also know that all World Products heads are precision CNC-machined, and indexed off the chambers to assure perfect alignment with the cylinders.
Key Features | Tech Specs | Instruction Sheet
Cast Iron SBC Cylinder Heads
Part # Application Plug Valve Type Spring Specs Max Lift Chamber
011150 Bare Cast Angle None None N/A 64cc
011150-1 Hydraulic Angle Manley Stainless 1.250" Single 100# Seat .560" 64cc
011150-2 Solid/Hyd Roller Angle Manley Stainless 1.437" Dual 125# Seat .600" 64cc
011150-3 Solid Roller Angle Manley Stainless 1.550" Dual 200# Seat .700" 64cc
011250 Bare Cast Straight None None N/A 64cc
011250-1 Hydraulic Straight Manley Stainless 1.250" Single 100# Seat .560" 64cc
011250-2 Solid/Hyd Roller Straight Manley Stainless 1.437" Dual 125# Seat .600" 64cc
011250-3 Solid Roller Straight Manley Stainless 1.550" Dual 200# Seat .700" 64cc
012150 Bare Cast Angle None None N/A 72cc
012150-1 Hydraulic Angle Manley Stainless 1.250" Single 100# Seat .560" 72cc
012150-2 Solid/Hyd Roller Angle Manley Stainless 1.437" Dual 125# Seat .600" 72cc
012150-3 Solid Roller Angle Manley Stainless 1.550" Dual 200# Seat .700" 72cc
012250 Bare Cast Straight None None N/A 72cc
012250-1 Hydraulic Straight Manley Stainless 1.250" Single 100# Seat .560" 72cc
012250-2 Solid/Hyd Roller Straight Manley Stainless 1.437" Dual 125# Seat .600" 72cc
012250-3 Solid Roller Straight Manley Stainless 1.550" Dual 200# Seat .700" 72cc