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This is the premium engine with the maximum displacement, horsepower and torque for a 5.0 Liter (302)-based engine. Jack Roush considers this the perfect candidate for your GT40 project car. These engines run through their RPM rager faster than a speeding bulllet. 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.
353R - Considered the flagship of the ROUSH 5.o Liter engines the internal engine architecture allows it to reach peak RPM quicker than any other model with the same displacement.
- Horsepower (maximum): 475 HP (estmated)
- Torque (maximum): 450 Lbs./Ft. (estimated)
- Displacement: 353 Cu. In.
- Block: Dark Iron Eagle 4-bolt main Sportsman, 8.2* Deck
- Crankshaft Type: Eagle 4340 Forged Steel (internally Balanced)
- Bore and Stroke: 4.150" x 3.250"
- 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: Roush/AFR Aluminum
- Intake Runner Volume: 205 CC, fully CNC ported
- Combustion Chamber Volume: 61 CC
- Valve Sizes: 2.08" Intake 1.600* Exhaust
- Rocker Arm Ratio/Type: 1.6:1 Full Roller, Extruded Aluminum Body
- Spark Plugs: Autolite 3923 (or comparable)
- Intake Manifold: Edlebrock Victor Jr. Single Plane
- Carburetor: Holley 4150 Series Single 4V
- 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: 30 to 34 degrees @ 4,000 rpm
- Oil Pan: Canton Racing 8-quart Fully Baffled Front Sump Road Race-Powdercoated
- Oil Filter: Motorcraft FL1-HP (or comparable)
- Oil Weight: 10w30 - non synthetic for first 3,00 miles
- Flywheel: McLeodSFI Rated Steel, 157 Toot Ring Gear
- Starter: Powermaster High Torque Gear Reduction
