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Why the Dart Big M Aluminum Block
Valve pockets designed to work with most aftermarket cylinder heads
Truly assembly ready
Saving perhaps the best for last
Also included is Holley EFI's industry-leading
Dart LS Next Skirtless Aluminum Block EFI Why the Dart Big MThe LS Next block is the first significant change in the bottom end 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 engines separated crankcase bays. Windage is greatly reduced, resulting in increased power and improved lubrication. This design change led to several additional improvements. The main webs are