DART LS Next Cast Iron Blocks

Darts LS Next Iron Blocks are designed from a clean slate approach that addresses shortcomings of the factory engines. These blocks are great for hot rodders, drag racers, circle track, off-road and hi-performance marine enthusiasts. Conventional style main caps and oil pans help address the windage and oil control issues seen in factory engines utilizing seperated crankcase bays.

Features

  • Priority Main Oiling System with Two Lifter Crossovers and Restrictor Provisions
  • Siamesed Cylinder Bores with Extra Thick Walls
  • Cylinder Barrels Extended .375" at the Bottom
  • Extra Thick Deck Ensures Reliable Head Gasket Seal
  • Blind Head Bolt Holes Available in 7/16" or 1/2"
  • Scalloped Water Jackets Increase Flow Around Cylinders for Better Cooling
  • Clearence for 4.100" Stroke with Steel Rods
  • Splayed Outer Bolts on Middle Main Bearing Caps
  • LS Style Motor Mounts
  • Provisions for OE Roller Lifters, Lifter Trays and Cam
  • Uses Stock Timing Cover and Rear Cover
  • All OE Bolt Holes for Starter, Water Pump, Etc.
  • Driver or Passenger Side Starter Mounts
TYPE: 4.125 Bore Blocks"
MATERIAL: High Nickel 220 BHN Cast Iron
DECK HEIGHT (IN.): 9.240
BORE (IN.): 4.125
MAIN BEARING SIZE: Stock
MAIN CAP MATERIAL: Steel
MAIN CAP TYPE: 4-Bolt
CAM LOCATION: Stock
LIFTER BORE DIAMETER (IN.): .842 (Stock)
FREEZE PLUGS: Press Fit
REAR SEAL: Stock
WEIGHT (LBS): 227

More From This Category

World Engine, Bare Blocks, Motown LS ,SB Chev,Iron Block - 9.240 Deck, 4.120" Bore, +.134" Raised Cam, 55mm Cam, .842" Lifters, 350 Mains, Billet Caps

World Engine, Bare Blocks, Motown LS ,SB Chev,Iron Block - 9.240 Deck, 4.120" Bore, +.134" Raised Cam, 55mm Cam, .842" Lifters, 350 Mains, Billet Caps

$6,464.63

World Engine Bare Block, Cast Iron, Merlin IV BB Chev Iron Block - 9.500" Deck, 4.595" Bore, Billet Caps, 55mm Cam, .904 Lifters

World Engine Bare Block, Cast Iron, Merlin IV BB Chev Iron Block - 9.500" Deck, 4.595" Bore, Billet Caps, 55mm Cam, .904 Lifters

$7,061.42

Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.500 In. Bore, 10.400 In. Deck, Each

Dart Engine Block, Big M Race Series Chevorlet Big Aluminum, 4.500 In. Bore, 10.400 In. Deck, Each

$15,136.99

World Engine Block, Motown II SB Chev, Raised Cam Iron Block - 9.025" Deck, 4.120" Bore, +.134" Raised Cam, 50mm Cam, .904" Lifters, 350 Mains, Billet

World Engine Block, Motown II SB Chev, Raised Cam Iron Block - 9.025" Deck, 4.120" Bore, +.134" Raised Cam, 50mm Cam, .904" Lifters, 350 Mains, Billet

$6,464.63

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.310water b/n brs, Each

Dart Engine Block, Big M, 4-Bolt Mains, 2-Piece Rear Seal, BBC 10.2, Standard, 4.310water b/n brs, Each

$4,216.56

DART IRON EAGLE SPORTSMAN SMALL BLOCK For Ford ENGINE BLOCK, 9.500, 4.000, Cleveland, Steel

DART IRON EAGLE SPORTSMAN SMALL BLOCK For Ford ENGINE BLOCK, 9.500, 4.000, Cleveland, Steel

$4,290.22