Proflow Cylinder Heads, AirMax 200, BB Chrysler Aluminium, Bare

Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302, 351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB. They have phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, high performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod.

Combustion Chamber Volume (cc): 78cc      
 Intake Runner Volume (cc): 245cc      
Exhaust Runner Volume (cc): 75cc        
Cylinder Head Style: Bare        
Cylinder Head Material: A356.2        
Intake Valve Diameter (in.): 2.19"        
Intake Port Location: Standard        
Exhaust Port Location: Standard        
Exhaust Valve Diameter (in.): 1.76"      
Maximum Valve Lift (in.): 0.65"        
Outside Diameter of Outer Spring (in.): 1.46"      
Valve Cover Mounting Style: Perimeter Bolt      
Accessory Bolt Holes Drilled: Yes        
Intake Valve Angle: 15 degree        
Exhaust Valve Angle: 15 degree        
Valve Guide Material: Manganese Bronze      
Valve Seat Machine Style: 5 Angle        
Valve Seat Material: Podwer Metal       
Oiling Style: Through Head         
Notes:            
Longer than stock pushrods may be required. Minimum bore size is 4.320 in.