The 406 Dominator
406 DOMINATOR. BIG CUBIC INCHES. SERIOUS PERFORMANCE.
For those looking to experience what a large displacement Small Block Chevrolet is truly capable of, the 406 Dominator brings together substantial torque, impressive horsepower potential, and the versatility to deliver outstanding performance across a wide range of applications.
Built around an all-new Dart SHP aftermarket block featuring splayed four-bolt main caps, priority main oiling, and a modern one-piece rear main seal, the Dominator starts with a heavy-duty foundation engineered for demanding performance applications. An Eagle forged rotating assembly, AFR aluminum cylinder heads, and a carefully selected hydraulic roller valvetrain complete a combination designed to make the most of its 406 cubic inches.
With increased displacement comes the ability to produce substantial torque without relying on excessive engine speed. Whether you're looking for effortless acceleration in a powerful street cruiser or a more aggressive combination with serious horsepower potential, the Dominator can be tailored to your vehicle, driving preferences, and performance goals.
Every engine is professionally assembled with careful attention to critical measurements, component compatibility, and overall build quality. Complete engines receive operating verification on our dedicated test stand before delivery, allowing critical operating conditions to be monitored and potential issues addressed before the engine reaches your vehicle.
The 406 Dominator represents the flagship Small Block Chevrolet offering from Reid's Speed Shop, combining serious displacement, premium components, and a heavy-duty aftermarket foundation for enthusiasts who expect exceptional performance without compromising build quality.
Starting out at $12,250
Typical investment varies based on component options, and customer-selected upgrades.Estimated power
450-550+HP
Operating Range
Stage 1: 2000-5800
Stage 2: 2400-6000
Stage 3: 2600-6000
Stage 4: 2800-6100+
Fuel Requirement
91-93+ Octane Pump Gas
Four established camshaft stages are available as starting points, with custom selections tailored to your desired performance and driving characteristics.
Quick Look
450–550+ Horsepower
Powerband Tailored to Your Camshaft Selection
10.5:1 Compression Ratio Standard (Can be Altered)
Heavy-Duty Splayed 4-Bolt Aftermarket Engine Block
Priority Main Oiling
1PC Rear Main Seal
Eagle 4340 Forged Rotating Assembly
Forged Performance Pistons
Eagle 5140 Forged Steel FSI I-Beam Rods w/ 7/16" ARP 8740 Rod Bolts
AFR 200cc Aluminum Cylinder Heads
Custom Hydraulic Roller Camshaft & Johnson Lifters (Choose from Stage 1–4)
LPC Billet 9-Way Adjustable Double Roller Timing Set w/ Torrington Bearing
Melling Performance Oiling System
Moroso 5-Quart Oil Pan
AFR Air-Gap Dual Plane Intake Manifold
1.5 Ratio Stainless Roller Rocker Arms
LPC One-Piece Custom-Length Pushrods
HEI Distributor with Melonized Gear
NGK Spark Plugs & Taylor Plug Wires
Polished Aluminum Valve Covers
Recommended 91+ Octane
Accessory Upgrade Option
For those looking to simplify installation and complete the package, a full accessory upgrade option is available. This option adds the essential front accessories and supporting components needed to make installation easier and give the engine a more complete, finished appearance.
This Turn-Key package includes:
CVF Full Serpentine Conversion Kit
• High-flow long water pump with bracket
• Polished 100 amp one-wire alternator with bracket
• Polished power steering pump with bracket
• Polished pulley combo kit
Swivel Thermostat Housing + High Flow Thermostat
Edelbrock Mechanical Fuel Pump + Mounting Plate
Light Weight Bronze Tipped Fuel Pump Pushrod
Add approximately $1,800
This option provides many of the key components typically needed when installing a fresh engine, helping reduce the time and effort required to source additional parts.
BUILT AROUND YOUR VISION
Our advertised engine packages serve as carefully developed foundations, not limitations on what your engine can become.
Every combination can be tailored to your specific application, whether you're looking for a dependable street cruiser with smooth, responsive power or an aggressive performance engine built for serious horsepower.
From compression ratio and camshaft selection to cylinder heads, valvetrain components, and overall operating characteristics, each engine is configured around your performance goals, driving preferences, and intended use.
Your engine should be built around what you want to accomplish, not restricted to a predetermined combination.
Our packages provide a starting point. The finished engine is built for you.
Why Choose Reid’s speed Shop?
Purchasing a performance engine is a significant investment, and choosing the right builder is just as important as selecting the right components. At Reid's Speed Shop, every engine receives the individual attention, precision, and craftsmanship expected from a dedicated performance engine building shop.
Each combination is carefully planned around its intended application, with components selected for compatibility, performance, and long-term reliability. Throughout assembly, critical measurements and clearances are verified to ensure every engine meets our standards before completion.
One of the greatest advantages of working with Reid's Speed Shop is direct communication with the person building your engine. Customers are kept informed throughout the process, with progress updates and photographs providing an inside look at their engine as it comes together.
Complete hydraulic roller engine combinations also undergo operating verification on our dedicated engine test stand, allowing us to monitor critical operating conditions and inspect for potential issues before delivery. Customers can see and hear their completed engine running through video updates or in person when arrangements allow.
From initial consultation to final verification, our focus is on delivering a professionally built performance engine and a customer experience that inspires confidence in every step of the process.