E-street Aluminium Cylinder Heads Suit Ford 289-351w, Springs to suit Solid Flat Tappet or Hyd Roller Cam Comes complete as a pair

• Combustion chamber volume: 60cc
• Intake runner volume: 205cc
• Exhaust runner volume: 62cc
• Intake valve diameter: 2.08"
• Exhaust valve diameter: 1.60"
• Valve stem diameter: 11/32"
• Valve guides: Manganese Bronze
• Deck thickness: 5/8"
• Valve spring diameter: 1.46"
• Valve spring maximum lift: .650"
• Rocker stud: 3/8"
• Guide plate: Hardened steel
• Pushrod diameter: 5/16"
• Valve angle: 20°
• Exhaust port location: Stock
• Spark plug fitment: 14mm x 3/4 reach, gasket seat

E-SERIES E-205 FORD FEATURES:

• Race-level performance while maintaining full compatibility with OEM equipment
• Features larger runners for increased airflow and revised exhaust ports and larger diameter springs for higher lift camshafts making it ideal for a spec series racer and larger displacement engines
• The exhaust port flange is in the stock location to allow for the use of off-the-shelf headers and hardware while the enlarged valves and ports support the power needed to compete at engine speeds of up to 6500 rpm
• Capable of supporting more than 500 naturally aspirated horsepower and even more in forced induction applications