Dart 31867212; SHP LS NEXT PRO; LS; 9.240" Deck; 4.125" Bore; Iron Block

SKU: DRT-31867212

Designed for high performance and heavy duty applications, the SHP LS Next PRO is the NEXT-LEVEL PERFORMANCE block for hot rodders, drag racers, circle track competitors, off-roaders and high performance marine enthusiasts.


  • Superior strength 220 BHN Cast Iron.
  • Steel 4-bolt main caps with upgraded ARP main studs.
  • Lifter oil crossover with restrictor provision.
  • 6-bolt per cylinder capability.
  • 4.000" up to 4.185" bore.
  • Factory oil filter provision.
  • Clearanced for center counterweighted crankshafts.
  • Full skirt design.
  • Priority main oiling.
  • Siamese cylinder bores.
  • Thick decks to ensure reliable head gasket seal.
  • Parts kit included (PN: 32000018).

Part Number:


Material: 220 BHN Cast Iron
Deck Height: 9.240"
Cylinder Bore: 4.125"
Cylinder Bore Max: 4.185"
Main Bearing Size: Stock LS
Main Cap Material: Steel
Main Caps: 4-Bolt 1-5
Cam Location: Stock 55mm
Lifter Bores: Stock 0.842" Diameter
Rear Seal: Standard