Roush BD427SRC 427 CI Street Race Carbureted Crate Engine

Description

Get authentic big block power in a lightweight small block footprint with the Roush BD427SRC 427 CI Street Race crate engine. This 7.0L engine delivers a dyno-verified 510 HP using a heavy-duty Dart Iron Eagle block and high-flowing CNC aluminum heads. Topped with a calibrated 4-barrel carburetor and a dual-plane intake, this engine gives your vintage Ford crisp throttle response and a deep exhaust rumble while maintaining enough engine vacuum for power brakes.

Key Features of Roush BD427SRC Street Race

• 510 HP Street-Tuned Output: Leaves the factory fully hot-tested to guarantee strong horsepower and 515 lb-ft of tire-shredding torque.
• Street-Tuned Hydraulic Roller Cam: Optimizes valve timing to create a healthy muscle car idle while pulling strong manifold vacuum.
• Dart Iron Eagle 9.5-Deck Block: Utilizes a premium aftermarket cast iron foundation that refuses to crack under heavy street abuse.
• CNC-Ported Aluminum Heads: Maximizes airflow port dynamics to keep the 427ci cylinders breathing freely across the entire powerband.
• Calibrated 4-Barrel Carburetor: Arrives pre-jetted and tuned specifically to match the camshaft profile for instant cold starting.
• Pump Gas Friendly Compression: Squeezes the air-fuel mixture to a safe ratio that prevents engine pinging on standard 91 or 93 octane.

Component Breakdown: Street Race Carbureted Long Block

This dressed 427ci package gives you turn-key street reliability without the constant tuning headaches.

• The heavy-duty Dart block houses a forged rotating assembly and a custom hydraulic roller camshaft
• Ships fully assembled with CNC aluminum heads custom Roush valve covers a dual-plane intake and an MSD distributor

Vehicle Fitment & Compatibility Matrix

This versatile 7.0L engine drops easily into classic Ford engine bays using 351W mounting locations. Sourcing a street-race 427 Ford crate engine modernizes your classic driveline with massive reliable torque.

• Fits classic Ford Mustang and Falcon street machines looking for a dependable 510 HP upgrade
• Fits vintage Ford Ranchero and Fairlane cruisers requiring strong low-end torque for highway cruising
• Fits classic Ford F-100 pickups demanding an authentic carbureted Ford V8 with modern forged internals
• Fits custom Cobra kit cars requiring a 427-badged small block footprint with massive mid-range punch

Fuel & Ignition System Requirements

Feeding this 510 HP small block requires standard mechanical fuel delivery and a steady ignition source.

• Feed the pre-installed carburetor using a reliable 6 to 7 PSI mechanical or electric fuel pump
• Wire the included billet distributor directly to an ignition control box to ensure crisp spark delivery

Installation, Break-In Oil & Priming Instructions

Follow basic engine builder pre-lube procedures to protect the new valvetrain and rod bearings.

• Spin the oil pump shaft manually with a drill and priming shaft to lubricate the lifters before starting
• Fill the pan with conventional high-zinc break-in oil and run a varied RPM cycle to seat the piston rings

USA Warranty, Emissions & Logistics

We pack and ship this engine securely on a heavy freight pallet straight to your door.

• Backed by Roush Performance with a 2-Year or 24000-Mile warranty covering internal mechanical components
• Designated for vintage pre-emissions custom builds classic muscle cars and closed-course racing