By Ben Mozart

There are many ways to move forward but only one to stand still:

                                                                                                                                -Franklin D. Roosevelt

It’s PRI 2013 and Richard Maskin exudes a glow of satisfaction.

He began thinking about the potential of the LS engine around 6 years ago and initially itched to correct rampant leaks throughout its oiling system and to optimize the length of its cylinder barrels. There was much work to be done: “When the piston protrudes at the bottom of its stroke, ring seal is usually compromised.”

In discussion about Dart’s latest innovation, the aluminum LS Next high-performance engine block, Maskin is engaging, always seeking efficiencies, always aiming for a higher standard—the ultimate triumph of the rational mind.

4dDartAlumNextBlockHere are some of the facts surrounding Dart’s new aluminum LS Next variant.

-Lightweight aluminum Next block saves 108lbs

-Windage concerns at high revs eliminated
Proven priority-mains oiling system: greatest safeguard of the performance engine

-Extended cylinder bores resolve ring-sealing anxieties and accommodate longer strokes


Troy MI: One year after revealing their remarkable cast iron LS Next engine block, Dart Machinery reduces its mass and announces an aluminum counterpart.

Created from the finest casting materials and weighing 107lbs, the LS Next was the first aftermarket block to comprehensively address high-performance troubles in the original equipment LS power unit. Laden with innovations, the list of performance upgrades incorporated in the Next block is long.

It was the first to correct rampant internal oil leaks. It was also the first to introduce a stepped bore to maintain oil pressure in the main galley. The first to remove the crankcase skirts, which not only improve windage troubles (eradicating severe turbulence within the crankcase at high revs) but also it allows the cylinders to be extended. “What could be more appealing,” asks its creator Richard Maskin, “Tackling the challenge of windage while at the same time improving ring seal.”

Race engine builders will appreciate extended cylinder bores that allow a 6.125in con rod and a four-inch stroke to operate while the piston remains squarely in its bore. They will also be comforted by the introduction of Dart’s proven priority-mains oiling system, which ensures lubrication reaches the crank and rods first.4eDartAlumNextBlock2

More encouragingly, standard LS components are compatible with the Next block. Featuring a standard deck and head bolt pattern, the LS cam and stock oil pump and all other components are accommodated. Steel main caps are featured with 7/16in bolts properly splayed to take anchor in the safety of the block’s more reinforced areas.

Other key innovations that define the characteristics of this new aluminum engine are the installation of Darton’s finest nodular-iron cylinder sleeves. And to facilitate a full kick-out oil pan the block is equipped with dual starter mounts, allowing the starter to be mounted either side. Dart’s aluminum Next engine block is available in deck heights of 9.240 to 9.500in and ready for immediate delivery.

For further information contact:

Dart Machinery

353 Oliver Dr,

Troy, MI 48084

Tel: (248) 362-1188

or visit