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

Designed for high performance and heavy duty applications, the SHP LS Next PRO is the NEXT-LEVEL PERFORMANCE block for hot rodders, drag racers, circle track competitors, off-roaders, and high performance marine enthusiasts.
Superior strength 220 BHN Cast Iron; Steel 4-bolt main caps with upgraded ARP main studs; Lifter oil crossover with restrictor provision; 6-bolt per cylinder capability; 4.000” up to 4.185” bore; Factory oil filter provision; Clearanced for center counterweighted crankshafts; Full skirt design; Priority main oiling; Siamese cylinder bores; Thick decks ensure reliable head gasket seal; Parts kit included (PN: 32000018)