not Imitation

LS Stage 3 Engine - 1,500 HP To 2,300 HP

Stage 3 LS Engine Package. This package is designed for that 1,500+hp in a cast-block/cast cylinder heads class.  These are designed and built for either dedicated drag-race only, or 'drag-and-drive style' events.  They are built with strength and reliability in mind based on our years of proven performance. 


  • Dart LS NEXT Iron Block (optional LS-R cast aluminum block upgrade)
  • 1/2" Head Stud Upgrade
  • Premium Callies forged crankshaft - balanced by SME
  • Custom Diamond piston kit - hard-anodized, Total Seal ring package - made for BIG power
  • Connecting rod options from CALLIES, OLIVER, CARRILLO, MGP, and R&R (based on application)
  • SME Custom Solid-Roller Camshaft 
  • Internal wet-sump oiling (optional dry-sump oiling system upgrades available)
  • MAST BLACK LABEL cylinder head castings - CNC machined at SME
  • TI / Inconel Exh valves, custom valve spring package - SME-specified based on application
  • JESEL / CROWER shaft rocker system
  • SM Billet Valve Covers
  • All engine machining labor, CNC porting, balancing, competition valve job, SMX one-piece compression hoops and machining
  • Competition engine assembly

Long-block prices starting from $38,995!

These long-block engines can be designed as a turbocharged or supercharged engine package.  We have a TON of options on front engine accessory drives, power-adder combinations, turbo or supercharger selections!  We can add a HOLLEY or FUELTECH EFI system, ignition system, and all the fuel system components as well.  Wrap it up with our engine dyno-calibration on your choice of fuels, and you end up with a tested, proven engine combination for your ride!

This engine package has many options available.  Please give us a call to discuss customizing yours today!