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GM LS3 415 Crate Engine, Supercharged

SKU: CNC-9005-1

GM GEN III LS3 415 Crate Engine, Aluminum Block, Compstar Crankshaft, H Beam Rods, CP Pistons, GM LS3 Heads, Whipple Supercharger, Hydraulic Roller Cam, Yella Terra Rockers, Holley ECU, Dyno Tested

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Here at CNC-Motorsports we strive for customer satisfaction on every engine. These motors all start with quality new GM blocks. The GM blocks start by going to our Peterson Align hone where every block is machined within specs. From there we go to our Rottler F68A CNC machine, where we true the bell housing face, parallel square deck, bore, and stroker clearance (when required).Once the blocks are completed at the Rottler they go to our Sunnen CK-10 cylinder hone, where the block is finish honed to specification and checked with our profilometer. Each valve job is done on our Berco cylinder head machine and flow tested on our Saenz flow bench. All of our rotating assemblies are balanced on our Hines Dominator custom built balancing machine. Each component is balanced within +/- 1 grams and the crankshaft is spin balanced to within .5 grams. All engines are fully blueprinted to our race specs.

GM LS3 415 Engine Specs

  • GM LS3 Aluminum Block
  • Compstar Forged Crankshaft
  • Compstar H Beam Rods
  • CP Forged Pistons
  • CP Rings
  • Clevite 77 Bearings
  • Melling Select Oil Pump
  • Fel-Pro Gaskets
  • Cloyes Timing Set
  • CNC Hydraulic Roller Camshaft
  • GM LS7 Lifters
  • Trend Pushrods
  • Yella Terra Rockers
  • GM LS3 Cylinder Heads
  • Comp Springs
  • Holley Aluminum Valve Covers
  • Holley Oil Pan
  • Whipple 2.9 Supercharger
  • SFI Race Balancer
  • ARP Hardware
  • Holley Throttle Body
  • Holley Injectors
  • Holley HP ECU
  • GM Coil Pack
  • Professional machined, balanced, blue printed in house and dyno tested by CNC-Motorsports
  • Note: Front drive assembly is not included, this is available for purchase, call for price
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      Chevy LS