Dart Block 31937221 LS Next Block Aluminum Block, 9.450 Deck Height, 4.125 Bore

Designed from a clean slate approach the LS Next Aluminum block has addressed the short comings of the LS platform and is the ideal candidate for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts. 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.

Priority main oiling system.

Cylinder barrels extended .375” at the bottom

Extra thick decks ensure reliable head gasket seal

7/16” Blind head bolt holes

Scalloped water jackets increase flow around cylinders for better cooling

Clearance for 4.100” stroke with steel rods

MUST BE clearanced for center counterweighted crankshafts

Splayed outer bolts on middle main bearing cap.

LS style motor mounts

Provisions for OE stock roller lifters and cam

Stock .842 lifter diameter

Uses stock timing covers and stock rear cover. **(Raised Cam blocks require special front and rear covers.)**

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

Driver or passenger side starter mounts

Parts kit included (Part# 32000035)

Parts kits do not include cam bearings

Weight 115 pounds