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Dart 31161211

SHP Iron Block SB Chevy

Dart 31161211

301-31161211

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Truck Freight: $119.00
Dart 31161211 SHP Iron Block SB Chevy $1,718.26
SHP Iron Block
  • Small Block Chevy
  • Bore: 4.125"
  • Rear Main Seal: 2-Piece
  • 350 Main Journals

  • Dart 31161211 Details

    Small Block Chevy

    Specifications:
    Material:
    Superior iron alloy
    Bore: 4.125" (unfinished)
    Bore/Stroke: 4.165" x 3.750" (max recommended)
    Cam Bearing Bore ID: SBC 2.00"
    Cam Bearings: Specially-coated & grooved with three oil holes
    Cam Bearing OS: +.010", +.020", +.030"
    Cam Bearing Press: .002"
    Cam Journal OD: Standard SBC 1.869"
    Cam Plug: 2-7/64" shallow cup
    Cylinder Wall Thickness: .230" minimum @ 4.165" bore
    Deck Height: 9.025"
    Deck Thickness: .625" minimum
    Fuel Pump: Mechanical pump provision
    Fuel Pump Pushrod: Standard length
    Freeze Plugs: Press-in cup plugs 1-5/8"
    Lifter Bores: SBC .8430" to .8440"
    Main Bearing Size: 2.450" (350)
    Main Bearing Bore: 2.6405 to 2.6415 (350)
    Main Caps: Class 35 iron, 4 bolt, center 3
    Main Cap Register: Deep stepped register on each side (no need for dowels)
    Main Cap Press: .005"
    Main Cap Bolts: #1, #5 - 7/16" (2); #2, #3, #4 - 7/16" 3/8" splayed (2)
    Oil System: Wet sump, main priority oiling (can use dry sump)
    Oil Pump Shaft: 350 main = stock shaft (.481" OD)
    Oil Filter: Standard SBC filter (uses 2-bolt filter adapter)
    Oil Pan: Standard SBC oil pan
    Rear Main Seal: 350 main, standard seal, 2-piece
    Serial Number: On main caps and left front
    Starter: Standard SBC
    Stud Hole/Head: Blind holes
    Timing Chain/Gears: Standard SBC components
    Timing Cover: Can use stock stamped steel or plastic
    Torque: 65 ft/lbs (7/16" bolts), 35 ft/lbs (3/8" bolts)
    Weight: 175 lbs

    Note:The lifter bosses in SHP blocks are .220" taller than the bosses in early-style blocks that were not designed for hydraulic roller lifters. If you are installing aftermarket lifters with link bars in an SHP block, the lifters must be designed for use in 1987-up or Bow Tie blocks.

    Due to the additional length of these aftermarket tie-bar lifters, they must be installed in the block before the cylinder heads are installed.

    Specifications:

    Rear Main Seal Style
    2-piece
    Cam Bearings Included
    No
    Cylinder Bore as Shipped (in.)
    4.115
    Cylinder Bore Diameter (in.)
    4.125
    Deck Height (in.)
    9.025
    Engine Block Material
    Cast iron
    Engine Block Style
    Aftermarket
    Engine Block Weight (lbs.)
    175
    Finished Cylinder Bores
    No
    Freeze Plugs Included
    No
    Main Bearings Included
    No
    Main Bolt Style
    4-bolt
    Main Cap Fasteners Included
    Yes
    Main Cap Material
    Ductile iron
    Main Caps Included
    Yes
    Main Journal Type
    350 mains
    Quantity
    Sold individually
    Raised Cam Location
    No
    Manufacturer's Part Number:
    31161211

    Why waste time sourcing, cleaning, machining, and prepping an old core in hopes it will be usable when you could get a new, quality block without the expense of a full-race unit? Dart "SHP" Special High Performance Blocks enable you to affordably build a powerful, durable engine. Designed for high-performance and heavy-duty applications producing up to 600 horsepower, the SHP Block is an ideal starting point for hot rodders, drag racers, Circle Track competitors, off-roaders, and marine enthusiasts. .

    One of the great provisions of the Dart SHP block is its ability to use OE hydraulic roller lifters. There are mounting bosses in the valley for a factory stamped steel spider, and the lifter bores are machined flat on top to accommodate the "dog bone" alignment bars used on OE hydraulic roller lifters. This allows an engine builder to take advantage of the fast acceleration and low maintenance of a hydraulic roller cam profile while using inexpensive stock-type lifters.

    Features
  • Designed for compatibility with stock components
  • Virtually ready to assemble right out of the box after a final cylinder hone
  • Precision machined from high-nickel cast iron
  • Decks even and parallel within .002"
  • Siamese bores 4.000" OR 4.125" (unfinished)
  • Cylinder walls .230" minimum at 4.165"
  • Priority main oiling system (oil is directed to main bearings first, then to cam bearings)
  • Splayed 4-bolt center three main caps
  • Blind head bolt holes
  • OE bolt holes for starter, clutch ball, etc.
  • Uses stock timing cover
  • Provisions for stock roller lifters and cams

    Tech Tip: Oiling System

    Tech Tip: Roller Lifters

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