"Reaper" 575 HP
(Stage 6)

CAD $19,995

The ultimate pump gas street performance package! The power of a big block, in a small block footprint.

Using an aftermarket block with a 4.125” bore and a longer 4.00” stroke, we are able to make a 427 cubic inch small block. This allows us to achieve huge horsepower and torque, without sacrificing drive quality. Truly the best of both worlds. This engine will drop right in to replace any current small block configuration.

All of the high performance parts that you would find in a race engine, crafted into a package that is reliable and street friendly. This engine is designed for those who want the best of the best, and are not willing to compromise!

**Looking for a little more power or a bit more chop? Our "Hot Cam" upgrade will add another 30hp and 15ft/lbs of torque for an additional $495. Ask us about it**

*Images shown may include optional accessories. Click the button above to see what's included.
Chevy 427 c.i. Engine with 575 HP / 575 TQ

Engine Overview

Key Notes

  • 427 cubic inch
  • Bore x Stroke: 4.125 x 4.00
  • 10.7:1 Compression 
  • Recommended 94 octane fuel
  • Aggressive camshaft sound
  • Minimal engine vacuum (vacuum pump/accumulator may be required)
  • Strong power throughout entire RPM range
  • 3.55 gear ratio or higher recommended
  • Power band: 2800-6000rpm
  • Rev limit:6400rpm

Dyno Results

Block:

  • UHP aftermarket performance block
  • 4-bolt splayed billet main caps
  • Priority oiled mains
  • Ultra thick deck surfaces
  • Increased cylinder wall thickness.

Rotating Assembly

  • Manley forged crankshaft (2-piece rear seal)
  • Manley forged connecting rods
  • Mahle forged pistons with low tension performance ring pack
  • Cloyes performance timing set
  • Howards Racing custom roller camshaft
  • Howards Racing chromoly 1-piece pushrods
  • Howards Racing link-bar roller lifters

Cylinder Heads

  • AFR 195cc CNC ported cylinder heads 
  • 2.050” intake, 1.6” exhaust valves with 8mm valve stems
  • Dual valve springs
  • 7/16 rocker studs
  • Guide plates
  • Stainless steel roller rockers

Accessories

  • Edelbrock Air Gar dual plane intake manifold
  • Holley Quickfuel 850 Brawler carburetor
  • Billet electronic distributor
  • Stainless steel matching hardware throughout

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 6 build today!
Ordering Process

How to Order Your Performance Crate Engine

Watch this quick guide to walk you through the simple steps of ordering your performance engine from Canadian Crate Engines.

Whether you’re a first-time buyer or a returning customer, this video covers everything you need to know from choosing the right engine package to finalizing your order.

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