DA31837211 - DART LS NEXT SHP BLOCK CAST IRON 4-BOLT 4.125"B 9.240"D SHORT SKIRT

Dart˝s LS Next block is the first significant change in the architecture of the LS engine platform. By eliminating the ˝Y-block˝ design and utilizing conventional style main caps and oil pans, Dart has addressed the problems resulting from the LS engine˝s separated crankcase bays. Windage is greatly reduced, resulting in increased power along with a much stronger main web area.

Features:

• Dart˝s LS Next block is cast in the USA with premium cast iron alloy
• Conventional style 4-bolt steel main caps with 7/16˝ bolts are used
• Full main webbing for maximum bottom end strength
• Cylinder barrels are extended by .375˝ at the bottom, providing greater piston support for all combinations
• 9.240˝ deck height, with options of 9.450" are available which allows for a possible effective barrel length of 9.825˝ deck block
• Extra thick Siamese cylinder bores allow for large displacement capacity, and a max bore size of at least 4.200˝
• A 5/8˝ thick full deck design with a 9.240˝ deck height
• Six head bolts per cylinder provide secure clamping for power adder applications
• Head bolts are upgraded to 7/16˝ for increased strength
• Blind head bolt holes don˝t go through into the water jacket
• Provision for oil restrictors in the lifter valley
• Revised low restriction priority main oiling system
• Pro-Stock / Pro-Mod big block style stepped main oil galley
• An external oil filter must be used with stock or aftermarket oil pumps
• Dual starter mounts
• The water jacket on the #1 cylinder has been expanded for additional cooling capacity
• LSX style lifter bosses and dog bone provision are provided
• Moroso oil pan suit DART LS NEXT BLOCK MO20144
• Oil pick up suit DART LS NEXT BLOCK MO24144