"Pro-Filer" Big Block Ford C460 Style Cylinder Heads

Race Winning Performance out of the box...
  • Accepts up to 1.650" springs
  • Available with or without water jackets
  • Bronze Valve Guides reduce stem wear
  • 420cc Intake Port Modified Pro-Stock Oval Port Design flows 524 cfm!

Pro-Filer has taken Big Block Fords to a new, power-producing, high. The Pro-Filer “C” replacement head features an amazing Pro Stock style intake port that is an oval design and flows over 520cfm! And since we know you love high RPM, the “C” replacement has a rigid rocker stand area to provide better stability.

So whether you are at the strip or hooked to a sled your Blue Oval will be putting those ole’ bowties on the trailer.

When looking for an intake manifold we suggest using a custom sheet metal intake or a Ford Motorsports.

Pro-Filer Big Block Ford C460 Style - 205 Series Intake

Pro-Filer Big Block Ford C460 Style - 205 Series Exhaust
Pro-Filer Big Block Ford
420cc C Style Cylinder Heads
Racing Cylinder Heads
  • Copper Alloy Seats Included
  • Your Choice of 5/16 or 11/32 Guide Dia.
  • Valve Job (Int/Exh): 2.450/1.850 Included

Series 205
Base Price (each):

Valve Guide Size
Spring & Retainer Options
Casting Style - Coolant Passages


Material: Aerospace Specification, A356 Aluminum Alloy (Primary Virgin Ingot)
Valve Angle: 7.5 Degree (Stock C 460)
Bore Spacing: 4.900 (standard big block)
Intake Port Volume & Shape: Oval-Shaped, PRECISION As-Cast 420cc
Intake Port Location: Raised .200" from stock location
Intake Port Flow: 524 cfm@ .900 with 2.450 valve
Combustion Chamber: Heart-Shaped As-Cast - 54cc
Milling: .005 per cc flat milling, .007 per cc angle milling
Exhaust Port Location: Raised .200" from stock location
Valve Diameter: Intake - 2.450"-2.480", Exhaust - 1.800"-1.850"
Valve Length: Intake - 6.400" long (2.100 install) , Exhaust - 6.300" long (2.100 Install)
Deck Thickness: 1/2" Deck for Nitrous or Blown Applications
Spark Plugs: Revised location to improve flame travel. Use .750" Reach, Gasketed (NGK R5671A-7 or colder)
Rocker System: Improved Solid Rocker Bar for added stability. Majority of aftermarket, (i.e. T&D and Jesel)
Valve Guides: Manganese Bronze to assist in extending valve life
Valve Spring Pocket: 1.650 OD Maxiumum (no deeper)
Valve Seats: Copper Alloy (standard)
Engine Size: 4.60 bore size and larger
Application: High Performance (i.e. street/strip/marine)

Flow Chart

Parts and Accessories

Intake Manifold: Fabricated Sheet Metal
Intake Gaskets: Use Fel-Pro Blank (cut-out)
Valve Covers: Sheet Metal Fabricated
Pistons: Custom
Rocker Systems: Jesel or T&D
Head Bolts / Studs: ARP
Bore Size: Optimized for 4.600 Bore or Larger (no less than 4.550 bore)
Rocker Systems: Shaft Mounted: Jesel or T&D (both available from Pro-Filer)
Valves: VICTORY Valves - Titanium or Stainless Steel (11/32 or 5/16 Valve Stem)
*Call our Tech Department for additional recommendations
Pro-Filer Performance Products
PO Box 217
New Carlisle, OH 45344
United States of America
Phone: 937-846-1333
Email: info@profilerperformance.com
Proudly Made in America