Surefire HP Engine HP31- ReadReviews onSurefire HP #HP31

Surefire HP Engine

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Part Number: HP31
Features & Benefits

Our high performance engines are based on dynamometer proven combinations built with name brand parts.

  • Most performance engines come in 3 different dress levels and range from 245HP-700HP & more built by a name you can trust
  • This engine was designed to run with all your vehicles stock components must have a chip burned, upgraded intake and headers for optimal performance, your engine may not necessarily come with all components listed, but they are listed as our recommendations of parts to run for optimal performance
  • Base H.P. long block with tinware
  • Applications not verified, not legal for pollution controlled vehicles computer controlled vehicles may need updated chips see warranty details for complete terms & conditions
Product Details
Part Number: HP31
Weight: 420.0lbs
Notes: Long block
IMPORTANT: See Warranty Information Bulletin. The VIN# is required to ensure that the correct part is shipped. Rochester fuel system design. 4 Bolt Mains, Roller Cam. Block Cast #High Performance Build. Center Bolt valve cover, Over 8500 GVW. Left Head Cast #191, 193. Right Head Cast #191, 193. Applications Not Verified, Not Legal for Pollution Controlled Vehicles, Computer Controlled Vehicles May Need Updated Chips. See Warranty Details for Complete Terms & Conditions. Call Surefire at 1-800-790-9094 for customer service, availability and technical assistance. "Expected delivery date does not account for the required special freight shipping. Most deliveries will arrive within 5-7 business days".
Air Cleaner Included: No
Bearing Cap Bolt Count: 4
Camshaft Configuration: OHV
Camshaft Exhaust Duration (°): 210
Camshaft Exhaust Lift (in): 0.462
Camshaft Intake Duration (°): 198
Camshaft Intake Lift (in): 0.435
Camshaft Lifter Style: Hydraulic
Camshaft Pre-Timed: Yes
Camshaft Rocker Arm Style: Solid
Carburetor Included: No
Connecting Rod Length (in): 5.7
Crankshaft Material: Cast iron
Crankshaft Stroke (in): 3.48
Cylinder Head Material: Iron
Cylinder Head Valve Springs Per Valve: Single
Distributor Included: No
EFI Computer Included: Not Required
Engine Balance Style: External
Engine Block Cylinder Bore (in): 4.04
Engine Block Deck Style: Open
Engine Block Material: Iron
Engine Compression Ratio: 9.6:1
Engine Crankcase Breather Included: No
Engine Cubic Inch Displacement (ci): 350
Engine Horsepower (hp): 292
Engine Minimum Gasoline Octane: 91
Engine Net Weight (lbs): 435.0
Engine Oil Capacity (qt): 5.0
Engine Oil Dipstick Location: Passenger Side
Engine Oil Recommended Viscosity: 10W30
Engine Oil Sump Style: Wet
Engine Torque (ft/lbs): 370
Exhaust Manifold Included: No
Flexplate Included: No
Flywheel Included: No
Fuel Injectors Included: Not Required
Fuel Rail Included: Not Required
Harmonic Balancer Included: No
Hydraulic or Solid Camshaft: Hydraulic
Ignition Control Module Included: No
Intake Manifold Included: No
Main Seal Style: One Piece
Piston Material: Hypereutectic
Spark Plug Recommended Gap (in): 0.035
Spark Plug Wires Included: No
Spark Plugs Included: No
Thermostat Housing Included: No
Throttle Body Included: No
Timing Belt Included: Not Required
Timing Chain Included: Yes
Timing Cover Included: Yes
Valve Cover Color / Finish: Chrome
Valves Per Cylinder: 2
Water Pump Included: No
Wiring Harness Included: No
Shipping Information: Overweight/Oversized Item. May require special shipping and handling. Available only to continental US addresses.
Product Service Bulletin:
  • Overall

    Surefire HP Engine


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