Pro-Filer Sniper X 24 Degree CNC Ported BBC Cylinder Heads

Pro-Filer Sniper X cylinder head is the latest BBC head offered in the Sniper Series. Designed with the most up to date technology available, the Sniper X head flows over 460cfm on a 375cc runner and over 325cfm on the exhaust! We started with the most sound casting available and then spent months developing the best port and chamber for a 24º head.
All heads are 100% CNC ported including the chamber and features a 5 angle valve job. The Sniper X uses standard BBC parts; Jesel, T&D;, Stud mounted rockers; .350 long intake valves; .100 long exhaust valves; and standard pistons.
When your ready to put your 565ci or larger BBC up against the world, the Sniper X head is for you.
Sniper X Specifications
Material: Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle: 24 Degree (rolled two degrees)
Intake Ports:Rectangle-Shaped, Fully CNC 375cc
Intake Port Design - Modified Oval Port located .485 - .490 off deck (stock)
Intake Port Flow: 375cc = 481 cfm @1.000
Combustion Chamber: CNC - 119cc (Milled 105cc)New design to promote wet-flow and efficiency!
Valve Spring Pocket: 1.625" Maximum (no deeper)
Bore Spacing: Standard BBC 4.840
Exhaust Valve: Std Location 1.800" - 1.850" / +.100 long
Intake Valve: Std Location 2.350" / +.350 long
Deck Thickness: 1/2" deck for Nitrous and Blown applications
Spark Plugs: Revised location to improve flame travel. Use Gasketed 3/4" Reach Plugs NGK R5671A-7 or colder.
Valve Job: 50 Degree High Performance
? Valve Guides: Maganese Bronze Alloy .502" OD
Valve Seats: Steel (Standard) or Copper Alloy.
Valve Train: Uses Stock Style stud mounted or Jesel/T&D; bolt on.
Engine Size Recommendation: 565+ / 8500 RPM
Application: High Performance (i.e. strip/marine). Pistons: Uses Standard BBC Pistons
Head Bolts/Studs: Requires 1" longer head bolt next to exhaust ports.
Intake Manifold - All conventional manifolds will bolt right up (Some port matching may be required).
Accessories - Heads drilled and taped for standard accessories (alternator)
Sniper X 24 Degree CNC Ported Big Block Chevy Cylinder Heads
The baddest head available for Conventional Port Rules
· Accepts up to 1.6250 O.D. Springs
Ends Drilled and Tapped for accessories