Oval port design promotes high intake port velocity for killer torque output
Available in 290cc, 320cc and 350cc intake port sizes to cover all applications
End pads drilled and tapped for accessories, standard stud girdles and rockers fit!
Accepts up to 1.625 Springs
Sniper 24 Degree Heads are now available with CNC Porting for even more air flow!
Unbeatable unique casting technology along with unbeatable cylinder head design gives us the "Pro-Filer" BBC Standard Port 24 degree replacement cylinder head.
Available in 3 different intake port sizes (290cc, 320cc and 350cc) we have made this head usable by anyone.
Ready to go, straight out of the box, the "Pro-Filer" BBC Standard Port solves every racers need of getting BIG power and BIG performance for little time and money.
Note: Flow rates may vary for any number of circumstances due to valve job, valves, the flow bench used, test parameters, etc.
Note: Flow rates may vary for any number of circumstances due to valve job, valves, the flow bench used, test parameters, etc.
Note: Flow rates may vary for any number of circumstances due to valve job, valves, the flow bench used, test parameters, etc.
Technical Details
Material: A356 Primary Ingot Aluminum Valve Angle: 24 Degree (rolled two degrees) Intake Ports: 290cc, 320cc, 350cc Intake Port Design - Modified Oval Port Intake Port Flow: 290cc = 365cfm @.800, 320cc = 395cfm @.800, 350cc=420cfm@.800 Combustion Chamber - 119cc, can be reduced to 105cc (.005 per cc flat milling, .007 per cc angle milling) Valve Spring Pocket - 1.625" Bore Spacing: Standard BBC 4.840 Exhaust Valve - 1.880" - 1.900 / +.100 long Intake Valve - 2.225" - 2.300" / +.250 long Deck Thickness - Approx 1/2" deck for Nitrous and Blown applications Spark Plugs - Use Gasketed 3/4" Reach Plugs NGK R5671A-7 or colder Valve Guides: Bronze Alloy .562" OD Valve Train - Uses Stock or Most Aftermarket Rocker Systems (shaft mount recommended) Valve Seats - Ductile Steel Accessories - Heads drilled and taped for standard accessories (alternator)
Product Accessory Details
Intake Manifold:Pro-Filer Sniper Single Plane or Fabricated Sheet Metal Intake Gasket: Special Pro-Filer Cometic PN IR250060KF Valve Cover Gasket: Stock BBC Exhaust Gasket: Stock BBC Head Gasket: 4.54 bore Cometic C5433 or Fel-Pro 1017 Head Gasket: 4.60 bore Cometic C5434 or Fel-Pro 1057 Valve Covers - Standard BBC Bolt Pattern Pro-Filer PN 191 Rockers - Standard BBC or shaft rockers (T & D, Jesel) Pistons: Most 24 Degree Aftermarket Valve Springs - Up to 1.670" Dia Valve Spring Installed Height: Determined by Valve Height When Ordered Head Bolts - Information Pending Head Studs - Information Pending
Product Recommendations for Optimum Performance
Intake Manifold: Pro-Filer Tunnel Ram for 500cu in or greater, Pro-Filer Single Plane Pistons: Wiseco Nitrous Systems: Nitrous Express or Wilson Manifolds Pro-Flow Bore Size: Optimized Bore of 4.50 and larger Rocker Systems: Stock or Shaft Mount (Jesel/T&D) both available from Pro-Filer Valves: Victory Valves - Stainless Steel
Part Numbers Note: Copper Seats available by special order add $100. Victory Titanium Valves also available, call for details.
Unbeatable unique casting technology along with unbeatable cylinder head design gives us the "Pro-Filer" BBC Standard Port 24 degree replacement cylinder head. 
