Authentic Roush 427RX Cobra Deck Dart Engines for Sale

Roush 427RX Engine

Home Engines Roush Engines Roush 427RX Engine

ROUSH 427RX DECK DART ENGINE

In the history of Hot Rods and Muscle Cars, the number 427 brings back plenty of “Magic Memories”. Back then, the “Side Oiler” was the king. Today, we have the option to build to this memorable cubic inch and still have all of the benefits of the “Windsor Engine”.

Technical Specs

Engine Model: 427RX

Horsepower (Maximum): 675 hp

Torque (Maximum): 560 lbs./ft.

Displacement: 427 cu. in.

Block: Dart Iron Eagle, 9.5” Deck, 4-Bolt Main Caps

Crankshaft Type: Forged 4340 Steel (Internally Balanced)

Bore and Stroke: 4.125” x 4.00”

Connecting Rod Type: Forged 4340 Steel “H-Beam”

Compression Ratio: 13.5:1

Pistons: Forged Aluminum

Timing Chain: Multi-Index w/ HY-VO Chain

Camshaft Info: Roush Proprietary

Lifter Type: Solid Roller

Cylinder Heads: Aluminum

Intake Runner Volume: 225 cc, Fully CNC Ported

Combustion Chamber Volume: 61 cc

Valve Sizes: 2.08” Intake 1.600” Exhaust

Rocker Arm Ratio: 1.6:1 Adjustable Roller

Spark Plugs: Autolite 3923 (Or Comparable)

Intake Manifold: Edelbrock Victor Single Plane

Fuel System: Holley HP 1000 CFM Carburetor w/ Mechanical Secondaries

Fuel Requirements: 110 Octane

Max. Recommended RPM: 7,500

Firing Order: 1-3-7-2-6-5-4-8

Timing: 31 to 34 Degrees @ 4,000 rpm (Not to Exceed 35)

Oil Pump: High Output - Adjustable

Oil Pan: 8 qt. Wet Sump (Several Styles Available)

Oil Filter: Motorcraft FL-1HP (Or Comparable)

Oil Weight: 10w30 Mobil1 Synthetic

Flywheel/Flexplate: Available

Starter: Available

Roush 427RX Engine

ROUSH 427RX DECK DART ENGINE

Technical Specs

Follow our social media

Newest Listings