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Katech LT1/LT4 416ci Forged Shortblock - Naturally Aspirated


LT1/LT4 Short Block for Naturally Aspirated Applications
Pricing: $10,999.99

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Up to 1,000 highly affordable horsepower from a brand new GM block with top-shelf components. From the master engine builders at Katech.

This engine includes:

-New production LT1/LT4 aluminum block

-Callies 8 counterweight crankshaft – 4.000-inch stroke. Blueprinted & balanced at Katech

-Callies forged connecting rods

-CP forged 4.070" pistons/rings/pins

-11.5:1 Compression ratio with a stock LT1 chamber and OEM head gasket

-10.9:1 Compression ratio with a stock LT4 chamber and OEM head gasket

-Clevite main & rod bearings

-Katech piston oil squirters

-ARP main studs

-Block oil/coolant plugs included

-Shipping stand

-Shipping crate

Please contact sales for a shipping quote.


Available in wet and dry sump configurations. 



  • KAT-A7830
  • KAT-A7830
  • Katech
  • New


Shipping Information

  • Item Requires Shipping
  • 275.0 lbs.

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