Description
Roush 347IR Crate Engine (BD347IRC) – High-Performance Small-Block Power for Street & Track!
Upgrade your ride with the Roush 347IR Crate Engine!
The Roush 347IR Crate Engine (BD347IRC) is a naturally aspirated small-block powerhouse, delivering exceptional throttle response, impressive torque, and high-RPM stability. Designed for performance street driving and occasional track use, this engine is precision-engineered with race-proven components to maximize durability and power output.
A high-revving small-block designed to push performance to the next level!
⚠️ Requires aftermarket fuel system, ignition, and tuning for peak performance.
What’s Included in the Roush 347IR Crate Engine?
✅ High-Performance Engine Block & Heads – Engineered for maximum strength and reliability
✅ Internally Balanced Rotating Assembly – Provides smooth, high-RPM operation
✅ Race-Optimized Cylinder Heads – Enhances airflow, combustion, and efficiency
✅ Custom-Tuned Induction System – Delivers instant throttle response and strong powerband
✅ Performance Camshaft & Valvetrain – Designed for high lift and duration, maximizing power output
⚠️ EXCLUDES fuel injection system, ignition system, computer, wiring harness, and exhaust components.
Technical Specifications
| Feature | Details |
|---|---|
| Brand | Roush Industries Inc. |
| Manufacturer’s Part # | BD347IRC |
| Product Type | Crate Engine |
| Summit Racing Part # | ROI-BD347IRC |
| Crate Engine Family | Roush Racing |
| Actual Displacement | 5.7L / 347 C.I.D |
| Assembled? | ✅ Yes |
| Engine Block Material | High-Performance Cast Iron |
| Cylinder Head Material | Aluminum |
| Engine Balance | Internally Balanced |
| Camshaft Type | Hydraulic Roller |
| Rear Main Seal Style | 1-Piece |
| Induction System Included? | ✅ Yes |
| Carburetor Included? | ❌ No |
| Throttle Body Included? | ❌ No |
| Distributor Included? | ❌ No |
| Oil Pan Included? | ✅ Yes |
| Valve Covers Included? | ✅ Yes |
| Timing Cover Included? | ✅ Yes |
| Water Pump Included? | ❌ No |
| Harmonic Balancer Included? | ✅ Yes |
| Flexplate Included? | ❌ No |
| Flywheel Included? | ❌ No |
| Air Cleaner Included? | ❌ No |
| Spark Plugs Included? | ❌ No |
| Spark Plug Wires Included? | ❌ No |
| Computer Included? | ❌ No |
| Wiring Harness Included? | ❌ No |
| Supercharger Included? | ❌ No |
| Quantity | Sold Individually |
Engineered for maximum torque, high-RPM performance, and durability!
Fitment & Compatibility
✔ Perfect for classic muscle cars, street machines, and custom pro-touring builds
✔ Designed for seamless integration with aftermarket fuel injection or carburetor setups
✔ Ideal for lightweight performance cars and classic high-revving V8 builds
Ensure your vehicle’s fuel and ignition system can handle the power of this high-performance crate engine!
Installation Notes & Recommendations
Professional Installation Recommended – Ensures correct fitment, tuning, and performance
⚙️ Requires Aftermarket Fuel System & Ignition – Not included with the crate engine
Designed for High-Octane Performance Fuel – Requires premium or race fuel for optimal results
⚠️ Not emissions-certified—intended for off-road or racing applications.
❓ Frequently Asked Questions (FAQ)
What is the horsepower and torque output of this engine?
- The Roush 347IR Crate Engine is built for high-performance applications, with output varying based on fuel setup, tuning, and supporting modifications. Contact Roush for dyno specifications.
Does this engine come with an ECU and wiring harness?
- No, this engine requires a standalone ECU and custom tuning for optimal performance.
Can I install this engine in a street car?
- Yes! While primarily designed for high-performance builds, this engine can be used in street applications with proper emissions and tuning modifications.
What fuel does this engine require?
- Premium 91+ octane fuel or racing fuel is recommended for maximum performance and engine longevity.
Does it include forced induction?
- No, but it is compatible with aftermarket superchargers or turbocharger setups.
Order Your Roush 347IR Crate Engine Today!
Take your build to the next level with the high-performance Roush 347IR Crate Engine!
✔ High-Revving 347 C.I.D Small-Block for Maximum Power
✔ Built for Performance Street & Track Applications
✔ Dyno-Tested & Proven for Peak Horsepower and Torque
✔ Designed for Custom Builds, Drag Racing, and Pro-Touring Applications
ORDER NOW & EXPERIENCE UNMATCHED PERFORMANCE!
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