Ford GT40

Engine


Basics

  • Ford small block V8
  • 347 cubic inches (5.7 liters) displacement
  • 10:1 compression ratio
  • 469 hp @ 6000 rpm
  • 454 ft/lbs torque @ 4500 rpm

Bottom End

  • Fully machined dart block
  • Eagle 4340 chrome moly steel crankshaft
  • 4.125" bore
  • 3.250" stroke
  • Eagle h-beam 5.400" connecting rods
  • Mahle forged flat-top pistons
  • Ford motorsport double roller timing chain

Cylinder Heads

  • CNC Brodix lh aluminum cylinder heads
  • 195 cc intake ports
  • 60 cc combustion chambers
  • 17° valve angle
  • Fully cnc ported
  • Four-angle valve job (intake valves)
  • Radiused valve job (exhaust valves)

Cam and Valves

  • Ford Motorsport hydraulic roller camshaft
  • 282° duration at .004" lift
  • 220° duration at .050" lift
  • 107° intake lobe center
  • 117° exhaust lobe center
  • .311" lift (at cam)
  • .498" lift (at valve)
  • Ford Motorsport hydraulic roller lifters
  • Manley 2.02" intake valves
  • Manley 1.6" exhaust valves
  • Scorpion 1.6 roller rocker arms

Intake and fuel

  • Edelbrock Performer RPM intake manifold
  • Port matched
  • Quick Fuel 780cfm carburetor
  • Premium unleaded fuel only
  • Holley fuel pumps

Exhaust

Ignition

  • MSD distributor
  • MSD 6AL Ignition
  • MSD Blaster high vibration coil
  • NGK spark plugs
  • Moroso plug wires
  • Smoothie wire looms
  • Firing order: 1-3-7-2-6-5-4-8
  • Initial timing: about 15 degrees
  • 34 Degrees @ full advance
  • Full advance at about 3000 rpm

Lubrication

  • Melling high volume oil pump
  • Aviaid road racing oil pan and pickup
  • 10w-30 or 15w-50 Joe Gibbs Hot Rod Oil
  • Canton Racing remote oil filter adapter
  • Canton Racing oil filter mount

Cooling

  • Ford M-8501-E351S racing water pump
  • Superior aluminum crossover radiator
  • Dual electric fans
  • Canton racing header tank
  • Billet Specialties thermostat housing
  • Stant 180° thermostat
  • Gates radiator hoses

Misc

  • Ford M-8501-E351S racing water pump
    (short water pump for GT40)
  • Craft Racing valve covers
  • Pioneer SFI balancer
  • Felpro gaskets
  • ARP fasteners
  • 10:1 compression ratio
  • Redline: 6250 rpm
  • Fully tested and tuned on SF902 dyno

Dyno chart

Build photos