Veteran owned ACE Racing Engines offers, all new 2000hp rated Dart LS Next Long block. 388ci, 409ci, 415ci, 427ci or 431ci
All of our engines are CNC machined, CNC honed and fully Blueprinted.
Every engine we build is custom built to fit into our clients requirements and application 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 on the cylinder bores and deck surfaces with the data collected via our Mitutoyo Profilometer.
Set up includes but not limited to the following machine/blueprinting –
CNC Block Machining
Cylinders double torque plate CNC 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
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 H Series main bearings
Clevite H Serie 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 10296 HV/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 double roller billet timing set (Jessel Belt drive available)
Johnson Hydraulic LS lifters & tie bars (Solid also available)
Dart LS Next 7/16 ARP Pro head studs (1/2 also available)
SCE 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
ARP Cam bolts
Crower Pro series stainless steel adjustable roller rockers (others available)
Front & Rear covers
Holley Billet Valley Cover
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…
ACE Racing Engines Billet Valve covers w/ 12AN vents are additional extra.
We recommend FuelTech or Holley EFI for this engine. We are a dealer for both and happy to discuss the various options!
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!