Roush DL427SRDSC 427 SR 7.0L Carbureted Street Engine

Description

Get reliable street manners and 510 HP for your late-model chassis using the Roush DL427SRDSC 427 SR 7.0L. This 427 cubic inch small block is engineered with a dual-sump oil pan to clear Fox Body crossmembers effortlessly. Topped with a calibrated 4-barrel carburetor, a dual-plane intake, and a vacuum-friendly hydraulic roller camshaft, this engine gives your Mustang crisp throttle response and a mean exhaust rumble without stalling out in heavy stop-and-go traffic.

Key Features of Roush DL427SRDSC 427 SR

• Dual-Sump Oil Pan: Specifically designed to clear the K-members and steering racks found in 1979-1993 Mustangs.
• 510 HP Street-Tuned Output: Leaves the factory fully hot-tested to guarantee strong horsepower and 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 powerband.
• Pump Gas Friendly Compression: Squeezes the air-fuel mixture to a safe ratio that prevents engine pinging on standard pump gas.

Component Breakdown: Dual-Sump Street Carbureted 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 a dual-sump pan

Vehicle Fitment & Compatibility Matrix

This versatile 7.0L engine drops easily into late-model Ford engine bays. Sourcing a dual-sump 427 street crate engine modernizes your Fox Body driveline with massive reliable torque.

• Fits 1979-1993 Fox Body Ford Mustang street machines looking for a dependable 510 HP engine upgrade
• Fits 1994-1995 SN95 Mustangs requiring strong low-end torque for highway cruising and custom bracket racing
• Fits custom tube-chassis cars demanding an authentic carbureted Ford V8 with modern forged internals
• Fits late-model custom street rod builds requiring a Fox-style pan 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