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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." There are Four variations of the Roush 427 to allow the perfect fit for your project.
427SR - The most sought-after Roush engine in the stable. Available in two configurations, both with dual plane intake manifolds. If you like torque that feels like a freight train, then the Roush 427SR is the engine for you.
- Engine Model: 427SR (With E303 Cam)
- Horsepower (maximum): 480 HP (estmated)
- Torque (maximum): 515 Lbs./Ft. (estimated)
- Displacement: 427 Cu. In.
- Block: Dark 4-bolt main, 9.5* Deck
- Crankshaft Type: 4340 Forged Steel (internally Balanced)
- Bore and Stroke: 4.125" x 4.00"
- Connecting Rod Type: 4340 Forged Steel H-Beam
- Compression Ratio: 10.25:1
- Pistons: wiseco Forged w/ Plasma Moly Rings & lightweight pins
- Timing Chain: Double Roller
- Camshaft Info: Roush Proprietary (moderate)
- Lifter Type: Hydraulic Roller
- Cylinder Heads: Aluminum
- Intake Runner Volume: 205 CC, fully CNC ported
- Combustion Chamber Volume: 61 CC
- Valve Sizes: 2.08" Intake 1.60* Exhaust
- Rocker Arm Ratio/Type: 1.6:1
- Spark Plugs: Autolite 3923 (or comparable)
- Intake Manifold: Edlebrock Performer RPM Dual Plane
- Fuel System: Holley 770 CFM Carburetor w/ Vacuum Secondaries & Electric Choke
- Fuel Requirements: Premium Unleaded (minimum)
- Max. Recommended RPM: 6,250
- Firing Order: 1-3-7-2-6-5-4-8
- Oil Pump: High Output - Adjustable
- Timing: 31 to 34 degrees @ 4,000 rpm (not to exceed 35)
- Oil Pan: powder coated 8-quart Front Sump - Baffled or Dual-sump (Mustang) available
- Oil Filter: Motorcraft FL1-HP (or comparable)
- Oil Weight: 10w30 - non synthetic for first 3,00 miles
- Flywheel: Steel 157 tooth (Aluminum Available)
- Starter: Ford Motorsports Super High Torque (1.6Kw) or Equivalent
