This is the Roush entry level 5.8 Liter (351)-based engine. Available in four variations, it should be simple to find a version that fits your project vehicle perfectly. Go from mild to wild and let your right foot make the decision for you. Utilizing a Dart Sportsman block, its lengthy list of forged components and fully CNC-ported heads this engine delivers power and durability running on premium pump fuel.

402SR - Available in two cam configurations; both are built with dual plane intake manifolds. Both are designed to offer the ultimate in driving, but you can make a choice between a modest ride and a torque-monster.

• Horsepower (maximum): 430 HP (estmated)
• Torque (maximum): 470 Lbs./Ft. (estimated)
• Displacement: 402 Cu. In.
• Block: Dark Iron Eagle 4-bolt main Sportsman, 9.5* Deck
• Crankshaft Type: Eagle 4340 Forged Steel
• Bore and Stroke: 4.00" x 4.00"
• Connecting Rod Type: Eagle 4340 Forged Steel H-Beam
• Compression Ratio: 10.0:1
• Pistons: wiseco Forged w/ Plasma Moly Rings & Lightweight Pins
• Timing Chain: Double Roller
• Camshaft Info: Roush Proprietary
• Lifter Type: Hydraulic Roller
• Cylinder Heads: Aluminum
• Intake Runner Volume: 185 CC, fully CNC ported
• Combustion Chamber Volume: 61 CC
• Valve Sizes: 2.02" Intake 1.60* Exhaust
• Rocker Arm Ratio/Type: 1.6:1
• Spark Plugs: Autolite 3923 (or comparable)
• Carburetor: Edlebrock Performer RPM Dual Plane
• Fuel System: Holley 770 CFM Carburetor w/ Vacuum Secondaries & Electric Choke
• Fuel Requirements: Premium Unleaded (93 octane minimum or highest available)
• Max. Recommended RPM: 6,250
• Firing Order: 1-3-7-2-6-5-4-8
• Oil Pump: High Output - Adjustable
• Timing: 29 to 31 degrees @ 3,000 rpm (not to exceed 31)
• Oil Pan: 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 SFI Rated (automatic Flexplate Available)
• Starter: Powermaster Super High Torque (1.6Kw)