Designed from a clean slate approach the LS Next Iron block has addressed the shortcomings of the LS platform and is the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.
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 decks ensure 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. Clearance for 4.100? stroke w/ steel rods. MUST BE clearanced for center counterweighted crankshafts. Splayed outer bolts on middle main bearing caps. LS style motor mounts. Provisions for OE stock roller lifters and cam. Uses stock timing covers and stock rear cover. All OE bolt holes for starter, water pump, etc. Driver or passenger side starter mounts.
By utilizing conventional style main caps and oil pans with LS rotating assemblies and related components, Dart has addressed the windage and oil control problems which result from the factory LS engine?s separated crankcase bays.
Features
- Engine Block Material:
- Cast iron
- Engine Block Style:
- Aftermarket/OEM standard deck
- Deck Height:
- 9.240 in.
- Cylinder Bore Diameter:
- 4.125 in.
- Maximum Bore Diameter:
- 4.165 in.
- Cylinder Bore as Shipped:
- 4.115 in.
- Finished Cylinder Bores:
- No
- Maximum Stroke:
- 4.100 in.
- Main Caps Included:
- Yes
- Main Cap Material:
- Billet Steel
- Main Bolt Style:
- 4-bolt
- Main Journal Type:
- LS mains
- Rear Main Seal Style:
- 1-piece
- Main Cap Fasteners Included:
- Yes
- Main Bearings Included:
- No
- Engine Block Weight (lbs.):
- N/A
- Raised Cam Location:
- No
- Cam Bearings Included:
- No
- Freeze Plugs Included:
- No
- Finish:
- Natural
- Quantity:
- Sold individually.
- Notes:
- Block bores are .10 undersized to allow for piston setup.
- Make:
- Chevrolet
- Engine Family:
- Chevy small block Gen III/IV (LS-based engines)
