ROUSH 327R DECK SPORTSMAN ENGINE

Engine Model: 327R
Horsepower (maximum): 425 HP
Torque (maximum): 390 lbs./ft
Displacement: 327 cu. in.
Block:
Dart Iron Eagle 4-bolt main Sportsman, 8.2” Deck
Crankshaft Type:
Eagle 4340 Forged Steel (internally balanced)
Bore and Stroke: 4.00” x 3.250”
Compression Ratio: 10.0:1
Pistons: Wiseco Forged 4.00” Bore
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: 2.05” Intake 1.60” Exhaust
Rocker Arm Ratio: 1.6:1
Spark Plugs: Autolite 3923 (or comparable)
Carburetor:
Holley 770 CFM w/ vacuum secondaries & electric choke

Intake Manifold: Edelbrock Victor Jr.
Water Pump:
Standard or Reverse Rotation is available
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:
29 to 31 degrees @ 3,000 rpm (not to exceed 31)
Oil Pan:
8 qt. Front Sump - Baffled or Dual-sump (Mustang) available *horsepower output can be reduced when engine is equipped with the Dual-sump pan
Oil Filter:
Motorcraft FL1-HP (or comparable)
Oil Weight:
10w30 - non synthetic for first 3,000 miles
Flywheel:
Steel 157 tooth SFI rated (Automated Flexplate available)
Starter:
Powermaster Super High-Torque (1.6kw)