Roush 342SR Engine

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ROUSH 342SR DECK SPORTSMAN ENGINE

342SR – Satisfies those who don’t need the wild cam and over-the-top horsepower numbers but prefer an engine that will give a smooth ride with plenty of performance. Comes with a dual plane intake for improved drive-ability.

Technical Specs

Engine Model: 342SR
Horsepower (Maximum): 375 HP est.
Torque (Maximum): 375 ft.-lbs.
Displacement: 342 cu. in.
Block: Dart Iron Eagle 4-Bolt Main Sportsman, 8.2” Deck
Crankshaft Type: Forged 4340 Steel (Internally Balanced)
Bore and Stroke: 4.00” x 3.400”
Connecting Rod Type: Forged 4340 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
Combustion Chamber Volume: 61 cc
Valve Sizes: 2.02” Intake 1.60” Exhaust
Rocker Arm Ratio: 1.6:1 Full Roller w/ Aluminum Body
Spark Plugs: Autolite 3923 (Or Comparable)
Intake Manifold: Edelbrock Performer RPM Dual Plane
Fuel System: Holley 770 CFM Carburetor w/ Vacuum Secondaries and Electric Choke
Fuel Requirements: Premium Unleaded (Minimum)
Max. Recommended RPM: 6,000
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. T-Style Front Sump of FOX-Style Dual Sump Available *Peak Horsepower May Be Reduced When Engine is Equipped with the Dual-Sump Pan
Oil Filter: Motorcraft FL1 (Or Comparable)
Oil Weight: 10w30 - Non Synthetic for First 3,000 Miles
Flywheel: Steel, 157 Tooth, (Balanced to 28.2 oz.)
Starter:
Water Pump: Reverse-Rotation is Standard, Standard Rotation is Available

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