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Katech LSA 416ci LS Short Block, 24x, Naturally Aspirated  Product 644 of 798 in category LS Engine Components  Katech LSA/LS9 4863/863/1771 Basic CNC Cylinder Head Porting Service

Katech LSA 416ci LS Short Block, Naturally Aspirated, 58x

Katech LSA 416ci LS Short Block, Naturally Aspirated, 58x
   
$9,974.99 
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Katech LSA 416ci LS Short Block, Naturally Aspirated, 58x

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 LSA block – Stronger than the LS3 blocks, CNC stroker clearanced
  • 58x Callies forged crankshaft – 4-inch stroke
  • Callies forged connecting rods
  • CP-Carillo forged 4.070 pistons/rings/pins
  • 10.9:1 Compression ratio with a stock LS3 chamber
  • Clevite bearings
  • Block oil/coolant plugs included

Valley cover and rear cover sold separately.

 

In stock & ready to ship!
This product was added to our catalog on Thursday 17 September, 2026.
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Katech LSA 416ci LS Short Block, 24x, Naturally Aspirated  Product 644 of 798 in category LS Engine Components  Katech LSA/LS9 4863/863/1771 Basic CNC Cylinder Head Porting Service
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