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Home > Racing Blocks > Dart SHP SBC Block PN 31161111/31161211
 Dart SHP Small Block Chevy
Starting at $1455.00
Plus shipping
"Ready to Assemble" Race Prep 
& Finish Hone Available!

 Dart Small Block

Dart Special High Performance (SHP) Small Block Chevy Iron Block

Why waste your valuable time sourcing, cleaning, machining and prepping a 30 year old small block core in the hope it will be usable?

What if you could have a true high performance small block from the most respected aftermarket block manufacturer without the expense of a full race block? Now you can...

The new Special High Performance Small Block Chevy block from Dart gives you all the features you need to build a powerful and durable engine at an affordable price. Cast from high nickel iron for superior strength, the SHP block features siamese cylinders with 4.000 or 4.125 standard bore sizes available. Cylinder walls are a minimum of .230" thick at 4.165 bore!

The block is machined using precision digital CNC equipment and is virtually ready to assemble right out of the box after a final cylinder hone. Decks are even and parallel within .002", lifter bores, cam and main tunnels are finished. The Dart SHP block is designed for compatibility with stock components, so no costly special parts are required for assembly.


  • Made in the USA
  • Brand new precision machined block
  • Premium high strength cast iron
  • Priority main oiling system
  • Siamese bores 4.000 or 4.125 (unfinished)
  • At 4.165 bore cylinder walls are .230" thick
  • Clearance for 3.75" stroke crank w/steel rods
  • Decks are even and parallel within .002"
  • Blind head bolt holes
  • 350 main journals
  • Splayed 4 bolt center three main caps
  • Two piece rear main seal
  • Provisions for OE stock roller lifters and cams
  • Uses 1981 - 1985 stock style oil pan and dipstick
  • Uses stock stamped steel or plastic timing cover
  • All OE bolt holes for starter, clutch ball, etc.


Also available as a ready to assemble package from Lukovich Racing Engines with finish honing, with complete or partial rotating assembly, or in assembled short block and long block combinations.

Dart SHP Small Block Specifications

Part #:3116111 4.000" Bore / 31161211 4.125" Bore
 Material:Superior Iron Alloy
 Bore:4.000" or 4.125" unfinished
 Bore & Stroke:4.165" x 3.750" max recommended
 Cam bearing bore ID:SBC 2.00"
 Cam Bearing O.S. :+.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" min.@ 4.165" bore
 Deck Height:9.025"
 Deck Thickness:.625" min.
 Fuel Pump:Mechanical Pump Provision
 Fuel Pump Pushrod:Standard Length
 Freeze Plugs:Press in cup plugs - 1 5/8"
 Lifter Bores:SBC .8430" - .8440"
 Main Bearing Size:2.450" (350)
 Main Bearing Bore:(350) 2.6405" - 2.6415"
 Main Cap Bolts:#1 7/16" (2), #2-3-4 7/16" (2) 3/8 Splayed (2), #5 7/16" (2)
 Main Cap Press:.005"
 Main Cap Register:Deep Steeped register on each side (no need for dowels)
 Oil System:Wet Sump, 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 Pan
 Rear Main Seal:350 Main, std seal 2 pc
 Serial Number:Left Front and Main Caps
 Starter:Standard SBC
 Stud Holes, Head:Blind Holes
 Timing Chain/Gears:Standard SBC Components
 Timing Cover:Can use stock cover / Stamped Steel or Plastic
 Torque Specs:7/16" Bolts - 65 ft lbs
3/8" Bolts - 35 ft lbs
 Weight:175 lbs @ 4.00 bore




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