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