1800hp LSX Engine


1800hp rated 388ci or 427ci Dart LS Next engine

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

Based on a Dart SHP Pro block with Callies DragonSlayer crankshaft, Callies Ultra I beam rods and Dart, Brodix or Frankenstein CNC cylinder heads. ALL NEW parts. 

Twin Turbo or Single Turbo.

x58 reluctor wheel.

Please contact us before ordering this engine to discuss your exact requirements. 12 months limited warranty included.

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Every engine is fully blueprinted and built by Stef himself – we are a highly dedicated race engine shop – not a production shop. Lots of time and man hours are put into each engine, that goes for 25hp VW engines to 3000hp LS engines – they all get the same treatment and every process of each build is photographed. Each build also comes with a fully detailed 2 page build sheet and surface finish report sheets with data collected via our Mitutoyo Profilometer.

Please call Stef at the shop (310-465-5181) 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 SHP Pro skirted block 
  • ACL Race Series main bearings 
  • ACL Race Series rod bearings
  • Durabond coated cam one piece cam bearings 
  • ARP Pro Main studs
  • Callies DragonSlayer crankshaft 
  • Callies Ultra Enforcer I beam 6.125” rods with L19 rod bolts 
  • TCI Flex plate 
  • ARP Flex plate bolts 
  • ATI harmonic balancer 
  • ARP Damper bolt 
  • JE Ultra Series forged pistons 
  • Melling 10296 HV/HP oil pump (external wet and dry sump available) 
  • Moroso sheet metal trap door oil pan 
Top End Spec:
  • Cloyes IWIS ‘Z’ chain double roller billet timing set 
  • Johnson Short travel Link Bar lifters
  • ARP 1/2″ Pro head stud kit
  • MLX head gaskets
  • TrickFlow Specialties CNC ported 255 LS3 style heads (other heads available see drop down menus)
  • Custom head work carried out by Total Engine Airflow
  • CNC combustion chambers
  • Stainless intake valves
  • Inconel exhaust valves
  • 6 bolt design
  • Custom turbo camshaft
  • PAC Platinum valve springs 
  • Titanium Retainers 
  • Viton valve stem seals 
  • Hardened spring cups 
  • Chromoly push rods 
  • Mahle Cam retaining plate & bolts 
  • ARP Cam bolts 
  • ARP Rocker bolts  
  • Comp Cams shaft mount rockers
  • Gasket kit 
  • Oil Filter
  • Front & Rear covers 
  • Holley billet valley Cover 
  • Valve covers (Holley or ACE Billet) 
  • Windage Tray 
  • Oil filler cap 
  • AN-3 Steam vent kit 
  • Hardware 
  • Lube & consumables

We recommend FuelTech or Holley EFI for this engine.

1800hp is based on a twin turbo or single turbo application with a good tune. Engines must be tuned professionally.

Dyno service available. Engine break-in, HP and Torque graphs and tunes saved prior to engine being shipped out. 

Ideal for extreme street cars, race cars and Drag Week Cars!

Other options also available. Please call prior to ordering to dial in the spec to meet your engine requirements. 

For more options, please check out our other engines