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Dart 31385135

Iron Eagle Race Series Engine Block Small Block Ford

Dart 31385135
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Part Number: 301-31385135

Iron Eagle Race Series Engine Block
  • Small Block Ford
  • Bore: 4.000"
  • Deck: 9.500" (351W)
  • Main Size: 351C
  • $3,012.26
    Ships 11/09/16
    if Ordered Today
    Truck Freight: $119.00
    Dart 31385135 Iron Eagle Race Series Engine Block Small Block Ford $3,012.26

    Dart 31385135 Details

    Iron Eagle Small Block Ford Engine Block

  • Race Series
  • 351C Main Journals

    Superior iron alloy
    Bore: 4.000" (unfinished)
    Bore/Stroke: 4.185" x 4.250" (max recommended)
    Cam Bearing Bore ID: SVO 2.203" - 2.205"
    Cam Bearings: Specially-coated & grooved with three oil holes
    Cam Bearing OS: +.010", +.020", +.030"
    Cam Bearing Press: .002" - .003"
    Cam Journal OD: Standard Ford Small Block (can be bored for 55mm)
    Cam Plug: 2-3/8" Dia. cup plug
    Cylinder Wall Thickness: .250" minimum @ 4.185" bore
    Cubic Inch: 468ci max recommended
    Deck Height: 9.500"
    Deck Thickness: .675" minimum
    Fuel Pump: Mechanical pump provision
    Freeze Plugs: Standard Ford Press-in cup plugs 1-1/2" O.D.
    Head Bolts: 1/2" Blind holes
    Lifter Bores: Standard Ford .8747" - .8757" Honed to size
    Lifters: Standard Ford - Hydraulic rollers need tie-bar style lifters
    Main Bearing Size: 2.749" (351C)
    Main Bearing Bore: 2.9415" - 2.9425" Honed to size
    Main Thrust Width: .913" - .915"
    Main Caps: Steel- 4 bolt, all 5
    Main Cap Register: Deep stepped register on each side (no need for dowels)
    Main Cap Press: .003" - .004"
    Main Cap Bolts: #1: 1/2" (2) 3/8" (2)
    #2, #3 & #4: 1/2" (2) 7/16" splayed (2)
    #5: 1/2" (2) 3/8" (2)
    Main Cap Torque: #1 - #5: 105 ft/lbs (All 1/2" bolts); #2, #3 & #4: 65 ft/lbs (Outer 7/16" bolts) #1 & #5: 35 ft/lbs (Outer 3/8" bolts)
    Oil System: Standard Wet sump or SVO dry sump, Priority Main oiling with external pump (wet or dry)
    Oil Filter: Standard Ford filter
    Oil Pan: Standard Ford 351W oil pan required
    Rear Main Seal: 4.500" x 3.750" Standard 1-Piece seal - Felpro #2921 or #2942
    Serial Number: On Right front and main caps
    Starter: Standard
    Stud Hole/Head: 1/2" Standard SVO with Blind holes
    Timing Chain/Gears: Standard SBF components
    Timing Cover: Uses stock 351W aluminum cover
    Weight: 195 lbs

  • Specifications:

    Cam Bearings Included
    Cylinder Bore as Shipped (in.)
    Cylinder Bore Diameter (in.)
    Deck Height (in.)
    Engine Block Material
    Cast iron
    Engine Block Style
    Engine Block Weight (lbs.)
    Finished Cylinder Bores
    Freeze Plugs Included
    Main Bearings Included
    Main Bolt Style
    Main Cap Fasteners Included
    Main Cap Material
    Main Caps Included
    Main Journal Type
    351 Cleveland mains
    Sold individually
    Raised Cam Location
    Rear Main Seal Style
    Manufacturer's Part Number:

    The Dart Iron Eagle Small Block Ford Engine Blocks put Ford racers in front with these cast from superior iron alloy engine blocks. Working with leading Ford racers and engine builders, they designed the Iron Eagle Race Series and Sportsman small blocks to solve the shortcomings of production engine blocks used in high performance and competition applications. Dart blocks for Fords are produced on dedicated tooling and machined on state-of-the-art CNC equipment. They added the features that Ford racers need to build powerful and reliable engines. Take a close look and you'll see why Fords fly with Dart!

  • Siamesed Cylinders: Standard 4.000'' or 4.125'' cylinders can be safely bored to 4.185'' diameter. Extra-thick walls prevent cracking and produce excellent ring seal.
  • Scalloped Water Jackets: Increase coolant flow around cylinder barrels to prevent detonation, extend engine life and produce consistent cylinder temperatures.
  • Steel Four-Bolt Main Bearing Caps: Sportsman Blocks have three 4-bolt center caps with splayed outer bolts for maximum strength, Race Blocks feature all five 4-bolt mains, rear cap uses standard 1-piece seal.
  • Stock Components: Provisions for stock motor mounts, accessory drives, smog pumps, starter brackets, oil pans and pumps.
  • Upgraded Oiling System: Has a complete stock-type system plus a low-tension priority main oiling system with front and rear external oil pump feeds.
  • Dual Crossovers: Allow oil flow to be metered with restrictors for roller lifter cams and/or roller rocker arms to reduce oil flow and windage.
  • Reinforced Head Bolt Bosses: Blind tapped to prevent leaks and produce accurate torque readings. Extra-thick decks prevent head gasket leaks.
  • Standard Camshaft and Cam Drive: Standard cam and cam drive can be used. Lifter valley of Sportsman Blocks have provisions for production hydraulic roller lifters.
  • Precision CNC Machining: Ensures consistent high quality and eliminates expensive ''blueprinting''.

    Tech Tip - Oiling System

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