1600hp LSX Engine


1600hp rated 388ci/408ci/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.

Dart Billet CCW crankshaft, Callies Ultra H beam rods and TrickFlow, Dart, Brodix or AllPro 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. 

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1600hp LSX Engine for Forced Induction applications (388ci or 427ci)


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 (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 SHP PRO skirted block
  • ACL Race series main bearings 
  • ACL Race series rod bearings 
  • Durabond coated one piece cam bearings 
  • ARP Pro Main studs 
  • Dart Billet 8CW Crankshaft 
  • Callies Ultra H beam 6.125” rods with ARP rod bolts 
  • TCI Flex plate (please specify transmission) 
  • ARP Flex plate bolts
  • ATI super damper (please specify accessory drive)
  • ARP Damper bolt
  • JE Ultra Series Forged pistons 
  • Melling 10296 HV/HP oil pump (external wet & dry sump available)
  • Moroso trap door oil pan
Top End Spec:
  • Cloyes IWIS ‘Z’ chain roller billet timing set 
  • Morel Short travel Link Bar lifters
  • ARP Pro head studs
  • GM MLS or MLX head gaskets 
  • TrickFlow, Dart, Brodix or AllPro cylinder heads
  • Custom turbo cam 
  • PAC Racing valve springs 
  • Titanium retainers 
  • Viton valve stem seals 
  • Chromoly spring locators
  • Chromoly push rods
  • ARP Cam bolts 
  • ARP Rocker studs 
  • Comp Cams shaft mount rockers
  • Gasket kit 
  • Oil Filter 
  • Front & Rear covers 
  • 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.

1600hp 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 and race 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