Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height
Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height
Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height
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  • Load image into Gallery viewer, Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height

Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height

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$4,295.00
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$4,295.00
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Dart SHP LS Next Iron Gen lll Skirted LS Chevy Engine Block, 4.125" Bore, 9.240" Deck Height

DART GEN III – Technical notes

  • Part Number # 31867211
  • Material: Class 30 grey iron
  • Bore: 4.125" w/ 4.185” max bore
  • Bore & stroke: 4.185” x 4.125" (Max recommended)
  • Cam bearing bore ID: 2.2998" – 2.3002"
  • Cam bearings: 55mm babbit Dart PN# 32210101-5
  • Cam bearing O.S. +.010", +.020", and +.030" available
  • Cam bearing press: .002" - .003"
  • Camshaft position: Stock LS cam position
  • Camshaft to crank ∅ 4.885"
  • Camshaft snout: 1.565" O.D
  • Cam Drive: Accepts belt drive (*machining required) or stock chain drive.
  • Cam retaining plate: Dart cam retaining plate / Cover. Dart PN# 32226000
  • Cam Plug snap ring: N/A
  • Cubic inch: 454 cubic inch max
  • Cylinder Wall Thickness: .215" @ 4.125" bore
  • Deck Height: 9.240" w / extended cylinder barrels .375" at bottom.
  • Deck Thickness: 5/8" (.625")
  • Fuel Pump: Electric pump required
  • Fuel Pump Pushrod: N/A
  • Freeze Plugs: 1.500" diameter Dart PN# 32820000B (Qty 6)
  • Lifter Bores: .8427" - .8437" up to .937" keyed w/ 1.062" dia. Bushing
  • Main bearing size: 2.558" – 2.559" Dart PN# 9-MS2321H or 9-MS2321HX
  • Main bearing bore: 2.7508" – 2.7512"
  • Main caps: 4 bolt billet steel w/splayed centres & centre thrust
  • Oil system: Low volume priority main oiling system w/single centre crossover
  • Oil Pump: Melling or Stock LS oil pump
  • Oil Filter: O.E.
  • Oil Pan: O.E or Aftermarket
  • Rear Main Seal Stock LS style with factory cover
  • Serial No. Front passenger side below deck surface (XXXLSN)
  • Sleeve OD: N/A
  • Sleeve O.S. N/A
  • Sleeve thickness: N/A
  • Sleeve Length: N/A
  • Starter: O.E.
  • Main bolts: Inners – 7/16" x 3.600" Outer – 7/16" x 2.900"
  • Studs, heads: Call for application
  • Stud holes, Head: 23 bolt pattern with 7/16", 3/8", and 8mm sizes
  • Stud length in block: 1.000" of thread depth
  • Timing chain/gears: 24x or 58x depending on application
  • Timing Cover: Factory LS cover and front seal 2005 w/ cam sensor provision
  • Torque Specs: All torque specifications w/ CMD #3 High Pressure Lube
  • ½” = 105ft lbs 7/16" = 65 ft lbs 3/8" = 45 ft lbs 8mm = 22 ft lbs
  • Weight: 227 lbs w/ main caps

 

Designed for high performance and medium duty applications, the SHP LS Next Block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.

FEATURES
• Dart priority main oiling system with provisions
for stock oil filter mounting.

• Accepts factory and aftermarket oil pans.

• Siamesed cylinder bores with thick walls.

• Cylinder barrels extended .375” at the bottom
of the bores.

• Thick decks ensure reliable head gasket seal.

• Blind head bolt holes available in 7/16″ or 1/2″.

• 6-bolt per cylinder capability.

• Scalloped water jackets increase flow around
cylinders for better cooling.

• Clearanced up to 4.100” stroke w/ steel rods.

• Clearanced for centre counterweighted crankshafts.

• Splayed outer bolts on middle main bearing caps.

• Provisions for LSX roller lifters and cam.

• Uses OE front and rear covers.

• All OE bolt holes for starter, water pump, etc.

• Windage trays.

• Parts kit included (PN: 32000018).