Up to 1,200 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 XD connecting rods

-CP forged 4.070" pistons/rings/pins

-10.35:1 Compression ratio with a stock LT1 chamber

-9.75:1 Compression ratio with a stock LT4 chamber

-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.

 NOTE: Any Katech Gen V Short Block requires a chamfered crank sprocket

Available in wet and dry sump configurations. 

THESE ARE IN STOCK AND READY TO SHIP!