1000hp rated Dart LS Next SHP Short Block


Our 1000hp rated Dart LS Next Short Blocks for Forced Induction applications, are fully machined, balanced & blueprinted. Ideal for daily drivers and street or strip cars.

Based on a Dart LS Next SHP block, Callies Crank and Rods and Ross Racing Pistons. Upgrade to Total Seal Gapless & Gas-Ported AP Steel Piston Rings using the drop down options!

Single or Twin Turbo. x58 reluctor wheel.

Please contact us before ordering this engine to discuss your engine requirements. 

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Start your build right with our 1000hp rated Dart LS Next SHP Short Block, for Forced Induction applications.

All our engines are fully machined, balanced & blueprinted. Ideal for daily drivers and street or strip cars.

We like to get to know our customers, their cars and what kind of engine/power they are looking for. Please contact us prior to ordering, to dial in the spec to meet your engine requirements.

We provide all our clients with a full engine spec and surface reports.

Set up includes, but not limited to the following machining/blueprinting:

  • Balancing
  • CNC Block Machining
  • Cylinders double torque plate diamond honed for correct piston to wall clearance and surface finish
  • Full surface finish report on deck, head and cylinder wall finish 
  • Engine fully blueprinted


  • 1000hp rated Dart LS Next SHP short block
  • Bore & stroke –TBD
  • Engine size – 388ci/408ci/427ci 
  • Piston Dish – TBD


  • Dart LS Next Iron SHP Block (Skirted) 4.125″ Bore
  • Callies Compstar 3.622″ or 4.000″ Crankshaft 58x
  • Clevite H Series Main Bearings 
  • Clevite H Series Rod Bearings
  • Callies Compstar 6.125 Rods
  • Ross Racing Pistons
  • Conventional Piston Rings or upgrade to Total Seal Piston Rings AP Steel Gapless and Gas Ported Ring Pack

This 1000hp+ turbo LSx short block is based on a twin or single turbo application tuned professionally. We recommend FuelTech or Holley EFI for this engine.

Long Blocks and Complete Crate engines are also available.

We work closely with our suppliers to keep on top of, and be a part of new innovations in our industry. Click here for more information about Total Seal Gapless & Gas-ported Piston Rings.




ACE Racing Engines makes no guarantee regarding operation of the Goods in settings or in ways that may be illegal or highly regulated, including those regarding smog and emissions. Please refer to your State/Country guidelines. 


Additional information

Weight 300 lbs
Dimensions 42 × 40 × 26 in