Key Features
- Intake Valve size 2.250
- Exhaust valve size 1.600
- Intake port volume 2300cc
- Exhaust volume 150cc
- Over 455 CFM in air flow @.8 inch of lift
The demand for more power in a racing engine is never ending. The best area to search for power in the past has traditionally been the cylinder head. The problem is many castings have reached their developmental limit. Power levels have also grown so high that castings no longer can stand the temperatures and pressures involved for very long, having to be replaced every few races. In some applications castings are not stiff enough to resist flexing and lifting!! So Don Losito thought it was necessary to start from a clean slate, from a stronger material with unlimited options. With the capabilities of Ultra Pro Machining’s 5-Axis CNC machines a cylinder head made from one solid aluminum billet with a complete water jacket was possible.
Intake Gasket | 0.39",0.47",0.060",0.125",0.188" |
Exhaust Gasket | Available From Ultra Pro Machining |
Head Studs | Avaliable From ARP |
Lifters | Intake 0.150" Offset |
Push Rods | 1/2" Intake 5/8" Exhaust |
Rocker Arms | Avaliable from T&D Machine and Jesel valvetrain |
9 Degree Valve Length | 5.950" Intake 5.600 Exhaust |
D3 Valve Length | 6.000" Intake 5.6000" Exhaust |
Valve Stem Diameter | 7mm to 11/32" |
Valve Guides | Maganese Bronze |
Valve Seats | Beryllium Copper or Ductile Iron |
Valve Seat Angles | 50° or 55° |
Weight | 36 Pounds |