LS NEXT Chevorlet LS Gen III Iron Block – 4.125 in. Bore, 9.240 in. Deck

Designed for high performance and medium duty applications, the SHP LS Next Block is the ideal starting point for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.
Dart priority main oiling system with provisions for stock oil filter mounting; Accepts factory and aftermarket oil pans; Siamesed cylinder bores with thick walLS2; Cylinder barreLS2 extended .375in at the bottom of the bores; Thick decks ensure reliable head gasket seal; Blind head bolt holes available in 7/16in or 1/2in; 6-bolt per cylinder capability; Scalloped water jackets increase flow around cylinders for better cooling; Clearanced up to 4.100in stroke w/ steel rods; Clearanced for center counterweighted crankshafts; Splayed outer bolts on middle main bearing caps; Provisions for LS2X roller lifters and cam; Uses OE front and rear covers; All OE bolt holes for starter, water pump, etc.; Windage trays; Parts kit included (PN: 32000018)