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
Sportsman II Cast Iron SBC Cylinder Heads
Part # Application Description Valve Type Plug Spring Specs Max Lift Chamber
011150 Bare Cast Sprtsmn II None Angle None N/A 64cc
011150-1 Hydraulic Sprtsmn II ManleyStreetFlo Angle 1.250"Sngl100#Seat .560" 64cc
011150-2 Sld/Hyd Rllr Sprtsmn II ManleyRceMstr Angle 1.437"Dual125#Seat .600" 64cc
011250 Bare Cast Sprtsmn II None Straight None N/A 64cc
011250-1 Hydraulic Sprtsmn II ManleyStreetFlo Straight 1.250"Sngl100#Seat .560" 64cc
011250-2 Sld/Hyd Rllr Sprtsmn II ManleyRceMstr Straight 1.437"Dual125#Seat .600" 64cc
012150 Bare Cast Sprtsmn II None Angle None N/A 72cc
012150-1 Hydraulic Sprtsmn II ManleyStreetFlo Angle 1.250"Sngl100#Seat .560" 72cc
012150-2 Sld/Hyd Rllr Sprtsmn II ManleyRceMstr Angle 1.437"Dual125#Seat .600" 72cc
012250 Bare Cast Sprtsmn II None Straight None N/A 72cc
012250-1 Hydraulic Sprtsmn II ManleyStreetFlo Straight 1.250"Sngl100#Seat .560" 72cc
012250-2 Sld/Hyd Rllr Sprtsmn II ManleyRceMstr Straight 1.437"Dual125#Seat .600" 72cc