SHP Iron Block
• Small Block Chevy
• Bore: 4.125"
• Rear Main Seal: 2-Piece
• 400 Main Journals
  
  Specifications:
  Material: Superior iron alloy
  Bore: 4.000" (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: 2.64" (400)
  Main Bearing Bore: 2.8406 (400)
  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: 400 main = stock shaft (.481" OD)
  Oil Filter: Standard SBC filter (uses 2-bolt filter adapter)
  Oil Pan: Standard SBC oil pan
  Rear Main Seal: 400 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.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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