Roush 427IR Crate Engine (BD427IRC) – High-Performance Power for Street & Track!

Unleash raw power with the Roush 427IR Crate Engine!

The Roush 427IR Crate Engine (BD427IRC) is a high-displacement, naturally aspirated monster, optimized for raw power and exceptional durability. With its race-ready internals, high-flow induction system, and precision tuning, this crate engine is the ultimate choice for muscle car enthusiasts and competitive racers.

A powerhouse designed to push the limits of speed, performance, and acceleration!

Requires custom fuel system, ignition, and tuning for optimal performance.

What’s Included in the Roush 427IR Crate Engine?

High-Performance Engine Block & Heads – Engineered for maximum strength and power output
Internally Balanced Rotating Assembly – Ensures smooth, high-RPM operation
Race-Optimized Cylinder Heads – Enhances airflow, fuel atomization, and