Details
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.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
4.125" Bore
Extra thick Siamese cylinder bores allow for large displacement capacity, and a max bore size of 4.200in
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
Stock cam diameter and location
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
Ships by Truck Freight Only - Call for Freight Quote
4.200 max bore by 4.100 max stroke equals 454 cid<
These Dart Blocks are shipped Directly from the Manufacturer - Most are taking months to get at this time - Please CALL for Availability>
* LS Next Iron Blocks do not include freeze plugs, coated cam bearings, or dowels
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Additional Information
Manufacturer | Dart |
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