Borowski Race Engines
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  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
  • Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost! Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!
Dart Aluminum LS Next 427 Cubic Inch Short Block - Built for Boost!

Type: Engine Packages
Vendor: Borowski Race Engines

Description:

BOROWSKI RACE ENGINES, INC. has established its position as the leading builder of Dart LS Next engines by being first in line with pre-production orders, working cooperatively with other top vendors to create custom solutions, building a wide range of extreme engines and maintaining inventory of key components. As a result of our effort, experience and investment, we can now offer world-class LS assemblies and engines on SHORT LEAD TIMES. Our standard LS Next displacement is 427 cubic inches.

This short-block features:
- Dart LS Next skirted aluminum block (unskirted available)
- Callies Ultra I-beam rods and center counterweighted Magnum crank
- Diamond Race Series pistons

This piece is intended as a platform for builds of 1,000 horsepower or more. Besides achieving the desired level of performance, it is built to survive. Everything must be verified – design, raw materials, manufacturing processes, quality control procedures. In this power range, you can’t cut corners without getting bit. When it comes together however, it is a thing of beauty.

Dart had done its homework on the LS Next block design. It features:
- Premium alloy cast in the USA
- Conventional style 4-bolt steel main caps with 7/16” bolts
- Full main webbing for maximum bottom end strength
- Cylinder barrels are extended by .3750” at the bottom
- Extra thick Siamese cylinder bores
- A 5/8” thick full deck design with a 9.240” deck height
- Six head bolts per cylinder
- 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

The Callies Magnum center-counterweighted crank and Ultra I-Beam rods are race-proven winners as are the Diamond pistons. Callies uses extremely clean Timken alloy with 260,000 psi tensile strength ARP rod fasteners. The center counterweights of the crankshaft increases its stiffness by 25% and reduces harmonics.  Everything is MADE IN THE USA.  CHeck out this video to learn the benefits of the 8-cwt Magnum crank.



We still need to finish machine and assemble all these great components. Our 4-axis CNC mill boasts precision of 0.0002” and 0.001 degree allowing us to achieve virtual perfection. The CNC diamond hone provides the perfect finish and final cylinder dimensions. Our computer balancer is comparably amazing in its resolution.

Available Options and Upgrades
- Block: Machine for 1/2 inch head studs, machine for Jesel belt drive, tall (9.750") deck, LS Next2, full billet aluminum block
- Rods: Callies Ultra H-beam, Callies Ultra I-beam Enforcer
- Pistons: hard anodizing, Moly coated skirts, ceramic crown for heat shielding
- Piston oilers
- Custom wet sump oil pan
- Daley Engineering dry sump with billet pan in 3 or more stages
- Choice of LS3 or LS7 pistons in either flat top or dish

Whatever your needs in the world of LS engines, please call us at 815-725-2727. We’ll be pleased to help you select the best possible piece to meet your performance requirements and budget. And don’t forget about the short lead times.

E907

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