The 355 Enforcer SBC
The 355 Enforcer Crate Engine is built for enthusiasts who want more than just horsepower. Designed around an all-new heavy-duty four-bolt aftermarket block with a modern one-piece rear main seal, the Enforcer combines the proven characteristics of the traditional 355 Small Block Chevrolet with a completely new foundation built for years of dependable performance.
With strong, responsive power, excellent street manners, and carefully selected performance components throughout, the 355 Enforcer is equally at home cruising the highway, pulling into a local car show, or coming to life when you put your foot into it. This is a premium small block for the enthusiast who wants an engine they can drive, depend on, and be proud to have under the hood, built with the quality and attention to detail expected from every Reid's Speed Shop crate engine.
Estimated power
375-425HP
Choose from 4 Different Custom Camshaft Selections!
Operating Range
Stage 1: 1600-5400
Stage 2: 1900-5600
Stage 3: 2200-5800
Stage 4: 2500-6000
Fuel Requirement
91-93+ Octane Pump Gas
Reid’s Speed Shop’s 355 Enforcer
READY FOR A SMALL BLOCK BUILT TO GO THE DISTANCE?
THE 355 ENFORCER IS BUILT FOR THOSE WHO VALUE PERFORMANCE THEY CAN DEPEND ON.
Built around an all-new heavy-duty four-bolt aftermarket block with a modern one-piece rear main seal, the 355 Enforcer takes the proven 355 cubic-inch Small Block Chevrolet and gives it the foundation it deserves.
Rather than chasing the largest displacement or highest horsepower number, the Enforcer is designed around what makes a great street engine: strong responsive power, excellent drivability, dependable operation, and carefully selected components engineered to work together as a complete combination.
Whether destined for a restored classic, weekend cruiser, show car, or hot rod built to rack up the miles, the 355 Enforcer delivers the unmistakable character and performance of a properly built small block while providing the confidence of an all-new aftermarket foundation. It's an engine you can be proud to put on display, yet one built to be driven and enjoyed every time you turn the key.
For the enthusiast who isn't chasing maximum horsepower but refuses to compromise on the quality of what goes under the hood, the 355 Enforcer delivers a premium, purpose-built alternative to the ordinary crate engine.
EXPECT RESPONSIVE STREET PERFORMANCE, EXCELLENT DRIVABILITY, PROVEN SMALL BLOCK CHARACTER, AND THE CONFIDENCE OF AN ALL-NEW AFTERMARKET FOUNDATION BUILT FOR YEARS OF DEPENDABLE SERVICE.
Starting out at $11,500
Typical investment varies based on component options, and customer-selected upgrades.Price includes carburetor, dual plane AFR Air-Gap intake manifold, and HEI ignition system
Quick Look
Powerband Tailored to Your Camshaft Selection
Approximately 10:1 Compression Ratio
Heavy-Duty 4-Bolt Aftermarket Engine Block
One-Piece Rear Main Seal
SCAT 9000 Series 3.480" Stroke Crankshaft
5.700" Forged Steel I-Beam Connecting Rods
Keith Black Hypereutectic Flat-Top Pistons
Premium Plasma-Moly Piston Rings
AFR Aluminum Cylinder Heads
Custom Hydraulic Roller Camshaft & Premium Hydraulic Roller Lifters
Billet 9-Way Adjustable Double Roller Timing Set w/ Torrington Bearing
Melling Performance Oiling System
5-Quart Performance Oil Pan
Edelbrock Air-Gap Dual Plane Intake Manifold
650 CFM Carburetor Included
Full Roller Rocker Arms
BTR One-Piece Custom-Length Pushrods
HEI Distributor with Melonized Gear
NGK Spark Plugs & Performance Plug Wires
Premium Aluminum Valve Covers
Recommended 91+ Octane
What to Expect
A dependable street-performance engine built around the strength and confidence of an all-new aftermarket foundation. The 355 Enforcer combines proven Small Block Chevrolet displacement with carefully matched performance components to deliver crisp throttle response, strong usable torque, and an engaging powerband designed for real-world street driving.
Expect approximately 375–425+ horsepower depending on your selected camshaft package, with responsive acceleration and plenty of power to make a classic car genuinely fun to drive. Camshaft selection allows the personality of the Enforcer to range from a smoother, refined performance idle to the unmistakable lope and attitude expected from a traditional hot rod, without sacrificing the street manners at the heart of the combination.
The 355 Enforcer is engineered for the enthusiast who wants to turn the key, enjoy the drive, and have confidence in what's under the hood. Whether cruising across town, heading to a car show, or stretching its legs on an open road, expect a well-rounded combination delivering the reliability, drivability, performance, and craftsmanship expected from a premium Reid's Speed Shop crate engine.
Upgrade options:
Comes standard with Quickfuel 750CFM carb, Edelbrock Air-Gap intake, AFR 200cc Enforcer cylinder heads, Aluminum 1.5 ratio roller rocker arms, polished valve covers, HEI distributor, and Moroso spark plug wires. Feel free to upgrade wherever you like!
Common Requests
No Carb Please
-$500
PLease Describe Add-Ons IN Project Description for this Package!
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
Also Comes With:
Swivel Thermostat Housing
High Flow Thermostat
Edelbrock Mechanical Fuel Pump + Mounting Plate
Light Weight Bronze Tipped Fuel Pump Pushrod
Add approximately $1,500
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.
Why Choose a Reid’s speed Shop Crate engine:
When purchasing a crate engine, you have many options available—from large production companies to smaller independent builders. At Reid’s Speed Shop, the difference is simple: this isn’t mass production—it’s personal craftsmanship.
Every engine is carefully assembled with attention to detail and built using combinations that have been thoughtfully researched and proven to work together. Rather than being one of hundreds of engines moving down an assembly line, your engine receives the kind of focus and care that only a small, dedicated shop can provide.
Communication is also a major part of the experience. Throughout the process, customers are kept informed and updated as their engine comes together. Photos and updates are often shared so you can actually see the progress of your engine being built rather than simply receiving a shipment notice when it’s finished.
Whenever possible, customers are also given the opportunity to hear their engine run before delivery. Whether in person or through a video demonstration, this allows you to see and hear the engine come to life—giving you confidence in how it runs, idles, and performs before it ever leaves the shop.
At Reid’s Speed Shop, the goal isn’t to move engines as quickly as possible—it’s to build them correctly and ensure every customer feels confident in the investment they’ve made. Building engines is more than just a job here; it’s a genuine passion and a craft that is taken seriously.
When you choose Reid’s Speed Shop, you’re not just purchasing an engine—you’re working directly with the person building it, ensuring transparency, accountability, and a level of care that large-scale production simply cannot offer.