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416ci LS Short Block (Boosted)

416 LS Short Block For Boosted Applications
Pricing: $11,499.99



A brand new GM block with top-shelf components. From the master engine builders at Katech. Install it yourself, or have us do it for you. Want to win? This premier street engine includes:

  • Production LS3 block – CNC stroker clearanced
  • 58x Callies 8CW forged crankshaft – 4-inch stroke
  • Callies Compstar XD forged connecting rods
  • CP-Carillo forged 4.070 pistons/rings/pins 
  • 10.0:1 Compression ratio with a stock LS3 chamber
  • Clevite bearings
  • Block oil/coolant plugs included

Valley cover and rear cover sold separately.


Crankshaft and connecting rod upgrades available at request.




Shipping Information

  • Item Requires Shipping
  • 275.0 lbs.

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