"Diablo" 415 HP
(Stage 4)

CAD $12,995

With 415 HP and 430 foot pounds of torque, the Diablo stroker engine is a wicked fast, loud, and intimidating beast. The Diablo has great low and mid range power, but at 3000 RPM it really opens up, and is sure to pin you to the back of your seat.

If you are thinking about the Diablo, you may want to upgrade some parts of your drive train to handle all the power.

Ford 347 c.i Engine with 415 HP

Engine Overview


Key Notes

  • 415 horsepower/ 430 Ft/lbs torque
  • 347 Cubic Inch Stroker
  • Bore and stroke: 4.030” X 3.400”
  • 9.8:1 Compression
  • Recommended 92 octane fuel
  • Works well with 2500RPM torque converter/manual transmission
  • Strong camshaft sound at idle
  • Great mid range and top end power
  • Power band 3000-6000 RPM
  • Rev limit: 6200 RPM

Dyno Results

Dyno Graph Results for Ford Stage 4 showing peak torque of 435TQ and peak horsepower of 420HP


  • Durabond cam bearings
  • Align honed mains
  • Precision bored and honed within .0002”
  • Square decked with ultra-smooth surface finish
  • Brass freeze plugs installed

Rotating Assembly

  • Eagle Specialty Products steel stroker crankshaft
  • Eagle Specialty Products forged connecting rods with ARP bolts
  • Keith Black hypereutectic flat top pistons with coated skirts
  • Hastings moly rings
  • Clevite tri-metal bearings
  • Cloyes timing set
  • Comp Cams performance Hydraulic roller camshaft
  • Melling oil pump
  • Manley pushrods
  • Melling roller lifters

Cylinder Heads

  • Qualfast Aluminum cylinder heads: 60cc combustion chamber, 2.02”/1.6” stainless steel valves, Dual valve springs, screw in studs, guide plates
  • Elgin roller rockers 1.6 ratio
  • ARP head bolts


  • Edelbrock Performer RPM Air Gap intake manifold
  • Edelbrock intake gaskets
  • Holley Quickfuel 650CFM carburetor, vacuum secondary with electric choke
  • Chrome dual fuel feed line
  • Billet HEI distributor
  • MSD/Taylor spark plug wires
  • Champion spark plugs
  • Power bond harmonic damper
  • New aluminum timing cover
  • Chrome or painted valve covers
  • Chrome or painted oil pan
  •  matching stainless steel hardware throughout engine

Other Options

We are happy to accomodate any choices in block paint colour and spark plug wire colour at no extra cost. Our crate engines also include the choice of chrome or black tinware (valve covers and air cleaner).

Please feel free to contact us for pricing on other choices for aftermarket valve covers and other accessories!

Start your Stage 4 build today!

More Engines

What is included with our crate engines?

Our base engine packages include the following items:
  • Long Block Assembly
  • Timing Cover
  • Intake Manifold
  • Air Cleaner
  • Harmonic Dampener Bolt
  • Distributor
  • Spark Plugs
  • Engine Oil
  • Engine Lift Plate
  • Oil Pan
  • Valve Covers (chrome/painted included in price)
  • Carburetor & Gasket
  • Harmonic Dampener (Balancer)
  • Flexplate (or flywheel at additional cost)
  • Spark Plug Wires
  • Oil Filter
  • Exhaust Gaskets

We also offer an optional completion kit, if you don't have these parts from your old engine:
  • Water Pump
  • Power Steering Pump
  • Billet Aluminum V-Belt Pulley Set
  • V-Belts
  • Fuel Pump
  • Billet Dipstick
  • PCV Valve
  • Alternator
  • High Torque Mini Starter
  • Accessory Brackets & Hardware
  • Fuel Pump Pushrod & Spacer Plate
  • Carb Fuel Feed Line
  • Valve Cover Breather
  • Flywheel/Flexplate Bolts

Below are additional parts that may be required. Please contact us if you have any questions concerning compatability with your new engine. We are able to provide direct fit headers or exhaust manifolds for almost all applications, as well as upgraded transmissions, clutch kits, and torque converters.
  • Thermostat Housing
  • Headers
  • Torque Converter
  • Clutch Kit
  • PCV Valve
  • Valve Cover Breather
  • Throttle Linkage
  • Radiator Fan
  • Fuel Injection
  • Thermostat
  • Header Bolts
  • Torque Converter Bolts
  • Pressure Plate Bolts
  • Vacuum (distributor, booster, PCV)
  • Intake Manifold fittings (heater core)
  • Aluminum Radiator
  • Transmission