Carroll Shelby Engine Company

Shelby 427 FE Aluminum Head - Completed (Pair)

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Shelby Aluminum FE Heads are cast from A-356 aluminum, heat treated to T6 hardness level and precision CNC machined.  Patterned on Ford's famous 427 FE medium-raiser cast iron heads, Shelby FE heads offer leading edge air flow improvements, starting with standard 2.250-inchintake and 1.750-inch exhaust valve diameters.

Due to valve size, the heads are suitable only for Shelby 427 Alloy FE or factory 427 cast iron blocks.  These heads utilize 14mm diameter, 3/4-inch reach, gasketed sparkplugs positioned in the stock location.  They are sold in pairs, complete or bare. 

Bare Heads:

  • Head Material – A-356, T6 Aluminum
  • Valve Diameters – 2.250-inch intake; 1.750-inch exhaust
  • Combustion Chamber – 82cc
  • Valve Guides – 0.345-inch; manganese bronze material
  • Exhaust port bolt – 2 bolts; vertical
  • Air Flow, Intake – 280cfm @ 28-inch H2O 320cfm, with Stage III porting
  • Air Flow, Exhaust – 185cfm @ 28-inch H2O 235cfm, with Stage III porting
  • Intake Port Volume – 163cc
  • Exhaust Port Volume –128cc 

Complete Heads Include:

  • Valves – Premium 1-piece stainless steel, swirl polished w/undercut stems
  • Valve Stem Seal Type – Viton, positive seal
  • Valve Springs – High Silicon Dual Springs w/Damper
  • Valve Retainers – Chrome moly steel
  • Valve Locks – 10-degree, machined