Roush 427IRFS-C Crate Engine – 560+ HP Turnkey Power for Street or Track
The Roush 427IRFS-C is a fire-breathing small-block V8 crate engine that combines raw displacement with streetable manners. Based on a bored and stroked 351 Windsor block, this 7.0L (427 CID) engine produces over 560 horsepower and 540 lb-ft of torque—all in a naturally aspirated, fuel-injected setup that’s ready to roar. Whether you’re building a pro-touring restomod, track-ready classic, or modern muscle machine, the Roush 427IRFS-C delivers legendary Ford performance with premium components and race-tested engineering.
🧩 Key Features & Benefits
| Feature | Details |
|---|---|
| Displacement | 427 CID (7.0L) |
| Block | Dart 351W-based cast iron, 4-bolt main |
| Horsepower | 560+ HP |
| Torque | 540+ lb-ft |
| Compression Ratio | 10.5:1 (Pump gas-friendly) |
| Induction | 8-Stack Electronic Fuel Injection (IR manifold) |
| Camshaft | Hydraulic roller, custom grind for street/strip use |
| Crankshaft | Forged steel |
| Rods | H-beam forged steel |
| Pistons | Forged aluminum |
| Heads | CNC-Ported Aluminum (Roush Spec) |
| Ignition | Fully mapped and programmable ECU (included) |
| Oil System | Front sump, high-volume pump |
| Exhaust | Headers not included (pair with custom or Roush) |
| Balance | Internal |
| Fuel System | Fully integrated 8-stack EFI w/ throttle bodies |
| Turnkey Package | Includes water pump, fuel rails, injectors, sensors |
| Warranty | 2-Year / 24,000-Mile Limited |
✅ What’s Included
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Complete long block assembly
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8-Stack EFI manifold system with electronics
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Roush custom calibration
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Billet aluminum valve covers
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Dyno-tested with results sheet
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Water pump, sensors, ignition system, and wiring harness
🔧 Ideal Applications
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Classic Mustang Restomods
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Cobra Kit Cars (Factory Five, Backdraft, etc.)
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Pro-Touring Ford Builds
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Muscle Cars & Street Rods
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Custom Trucks
💡 Why Choose the Roush 427IRFS-C?
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Turnkey power: No guesswork—just bolt in, wire up, and run.
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Race-proven reliability: Built with forged internals and tested by Roush.
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Classic looks, modern brains: The 8-stack IR manifold mimics classic Weber carburetors while delivering the drivability of modern EFI.
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Legendary name: Roush engines are trusted in racing, OEM applications, and elite builds worldwide.
📈 Internal Links for Funnel Support
