Roush DL427IRDSPC 427 CI Individual Runner Performance Crate Engine

Description

Haul heavy enclosed car trailers using the Roush DL427IRDSPC Individual Runner Crate Engine for show-stopping performance. Generating 560 brake horsepower at 6,200 RPM from 427 cubic inches, this Windsor-based small block Ford pairs polished eight-stack electronic induction with a dual-sump oil pan for high-end pro-touring builds.

Solid four-bolt main cast iron construction supports 4.125-inch bores and a 4.000-inch stroke. Internal hardware includes a 4340 forged steel crankshaft, forged 4340 H-beam rods, and forged 4032 aluminum pistons. Featuring a 10.5:1 compression ratio and a polished seven-quart dual-sump road-race oil pan, dry weight is 512 lbs.

Key Features of Roush DL427IRDSPC

Discerning vehicle craftsmen buy Roush DL427IRDSPC crate engine systems to install supercar-level visual details and pushrod power into classic frames. Polished aluminum individual runners deliver razor-sharp induction response.

• Polished eight-stack individual runner intake bodies maximize engine bay aesthetics
• 4.125-inch cylinder bores allow unshrouded airflow around large intake valves
• 4.000-inch forged steel stroke crankshaft converts stroke length into massive low-end torque
• Forged 4340 H-beam connecting rods endure brutal high-load acceleration pulls
• 10.5:1 compression pistons produce tremendous thermal energy on 93-octane pump fuel
• CNC machined cylinder heads feature 205cc intake runners for fast port velocity
• Polished front accessory drive components maintain proper belt tracking under load
• DL427IRDSPC engine wiring harness connects straight to factory gauge clusters

Dyno Verified Output Operating Parameters

Spanning an operational band from 2,500 to 6,500 RPM, this V8 outputs 560 brake horsepower at 6,200 RPM and 540 lb-ft torque at 4,500 RPM. The hydraulic roller camshaft features 236 degrees intake and 244 degrees exhaust duration at 0.050-inch lift, alongside 0.576-inch valve lift. Premium 93-octane fuel maintains stable combustion, pulling 13 in-Hg manifold vacuum with 50 to 70 PSI oil pressure.

Bellhousing Interface Frame Rail Spacing

The standard Ford small-block 6-bolt bellhousing pattern fits Tremec TKX, Magnum, and heavy-duty Ford automatic transmissions. Internal zero-balance engineering requires neutral balance flywheels. The dual-sump oil pan fits around dropped steering linkages and tubular front crossmembers in classic pro-touring chassis.

Pre-Oiling Protocol Prohibited Applications

Circulate zinc-rich break-in oil through all engine oil galleys using an external drill tool prior to turning the starter. This unit is not engineered for marine vessel installations, turbocharger pressures over 10 PSI on standard ring gaps, or unmetered nitrous systems.

• Drain break-in fluid after the initial 50 miles of vehicle operation
• Change engine lubricant every 3,000 miles using high-zinc synthetic oil
• Inspect individual throttle body balance and linkage rods every 12 months

Factory Warranty Coverage Complete Manifest

A 24-Month or 24,000-Mile factory limited warranty protects this powertrain against component failures. Crate contents comprise the complete long block, polished eight-stack fuel system, engine management controller, dual-sump oil pan, polished valve covers, distributor, and certified dyno test documentation.