2000hp Dart LS Next Engine


2000hp rated 388ci, 409ci or 427ci Dart LS Next engine (other sizes available)

COMPLETE LONG BLOCK with oil pump, oil pan, damper, flex plate, front and rear covers, valley cover and valve covers.

Dart LS Next Iron block with Callies Magnum CCW crankshaft, Callies Ultra Enforcer I beam rods and Dart, Brodix or AllPro CNC cylinder heads. ALL NEW parts. 

Ideal for extreme Street Cars and Race Cars!

x58 reluctor wheel.

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

    • $
    • $
    • $
    • $
    • $
    • $
    • $
    • 699 $


2000hp+ Dart LS Next Engine for Forced Induction applications (388ci, 408ci OR 427ci)

Ideal for extreme Street Cars, Drag Week cars and Race Cars!

All of our engines are fully CNC machined, honed and Blueprinted.

Every LS engine we build is custom to our clients specifications and receive full, meticulous attention to detail throughout the whole build process. We also provide each client fully detailed Build Specification Sheets for their engine and a Surface Finish Report with the data collected via our Mitutoyo Profilometer.

Please call Stef at the shop (424-378-1219) to talk about your engine requirements and to dial in the spec before ordering.

Set up includes but not limited to the following machine/blueprinting –
  • Balancing
  • CNC Block Machining
  • Cylinders double torque plate honed for correct piston to wall clearance and surface finish
  • Full surface finish report on deck, head and cylinder wall finish included with build sheet
  • Engine fully blueprinted
  • Heads CC’d and valve job
  • Valve spring heights set up 
  • Pushrod length
  • Rocker geometry 

Short block spec: 

  • Dart LS Next 4.125 PN 31837221 
  • Dart LS Next Cam retaining plate & bolts
  • LS Next Block parts, cam bearings, dowels, freeze plugs
  • Dart LS Next windage tray & retaining plate & bolts
  • Clevite race series main bearings 
  • Clevite race series rod bearings
  • Dart LS Next 7/16 ARP Pro Main studs (1/2 available)
  • Callies Magnum 8-CCW 4.00” crankshaft (Ultra Billet & Magnum XL also available)
  • Callies Ultra Enforcer I beam 6.125” rods with ARP bolts (Aluminum rod also available)
  • TCI Flex plate 
  • ARP Flex plate bolts 
  • ATI harmonic balancer 
  • ARP Damper bolt 
  • Custom JE Forged Pistons
  • Trend thick wall pins
  • Melling 10295 HP oil pump (External Wet or Dry Sump also available)
  • Moroso LS Next oil pan 
  • Stef’s Oil filter adapter plate for Moroso pan
Top End Spec:
  • Cloyes IWIS ‘Z’ chain billet timing set (Jessel Belt drive or RCD Gear Drive available)
  • Johnson Hydraulic LS lifters & tie bars (Solid also available)
  • Dart LS Next 7/16 ARP Pro head studs (1/2 also available)
  • MLX head gaskets (others available) 
  • Dart, Brodix or AllPro CNC cylinder heads
  • 6 bolt design
  • Custom Twin Turbo Cam (Hydraulic or Solid)
  • PAC Racing Valve Springs
  • Titanium Retainers
  • ARP Cam bolts 
  • Crower Pro series stainless steel adjustable roller rockers (others available)
  • Gasket kit 
  • Oil Filter
  • Front & Rear covers 
  • Holley Billet Valley Cover
  • ACE Racing Engines Billet Valve covers w/ 12AN vents
  • Windage Tray 
  • AN-3 Steam vent kit 
  • 12 point Hardware 

Options: DART LS Next II upgrade with Cleveland mains & 1/2 studs (3500hp capable), ultra billet crank, billet heads, roller bearing cam tunnel and more…

We recommend FuelTech management for this engine.

This 2000hp+ Dart LS Next based engine is based on a twin turbo or single turbo application with a good tune. Engines must be tuned professionally.

Ideal for extreme street cars, grudge racing and Drag Week/Rocky Mountain Race Week type competitions!

Other options also available.

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

For more options, please check out our other engines

Additional information

Weight 400 lbs
Dimensions 48 × 40 × 40 in