GEN 3 GEN 4 ENGINE PACKAGES
Katech has been working with the LS1 since 1997 for the Corvette CR5 GM factory racing team. With this expertise, Katech has developed a line of race-derived, aftermarket performance crate engines and components for the enthusiast with LS1/LS2/LS6/LS7 components.




 
Street Attack 500, Desert Attack 500: 8.2L, 500in3
Now taking orders for Street Attack and Desert Attack 500 cubic inch engines. Please call for details.

 
         
 

 

 
KAT-A4725 Sneak Attack LS7:  5.7L, 346in3
With an 8000rpm redline, this crate engine is ideal for that "sleeper" ride. Package includes LS7 case, Katech forged piston-rod assembly, forged crankshaft, LS7 cylinder heads, and an LS7 derived valvetrain coupled with Katech specified camshaft.
2 Stage dry sump oiling system
 
        Starting at $29,000
 

 
KAT-A4730 Street Attack LS7 :  7.0L, 427in3
Top-tier LS7 performance engineered for street applications . Crate engine features Katech 11:1 compression forged pistons, solid small-end rod bushings, street-optimized camshaft, and valvetrain enhancements. F-body and Y-body applications available. The perfect choice for high power, daily driven vehicles.

 
        Starting at $21,226
 

 
KAT-A4735 Track Attack LS7:  7.0L, 427in3
The ultimate normally-aspirated LS7 crate engine for off-road / track use applications. Drawing from over two decades of experience with championship winning pushrod V8s, this package is race ready. Features Katech 12:1 or 14:1 compression forged pistons, solid small-end rod bushings, high output camshaft and valvetrain enhancements. Available with electronic or mechanical throttle.

 
        Starting at $21,226
 

 
KAT-A4740 Air Attack LS7: 7.0L, 427in3
Extreme forced induction performance for the LS7 engine. This package includes Katech forged low-compression pistons, forged steel connecting rods, upgraded camshaft and upgraded valvetrain.
 
        Starting at $24,000
 

 
KAT-A4675 SCCA T1 LS6:  5.7L, 346in3
This package conforms to all SCCA T1 specifications. Carefully blueprinted to maximize performance within OEM tolerances.

 
        $12,000
 

 
KAT-A4680 Torquer LS6:  5.7L, 346in3
Great turn-key crate engine for hot rods and cars that want more torque than factory but great reliability and factory-like manners.

 
        Starting at $10,000
 

 
KAT-A4685 ASA Late Model Series:  5.7L, 350in3
Circle track 350/400 base engine prepared to ASA Late Model Series specifications, sealed and dyno validated.

 
       

New: $8,400

Rebuilds $3,500

 

 
KAT-A4690 Torquer LS2 :  6.0L, 364in3
Katech Performance gives the LS2 engine the upgrade it deserves. Features include Katech Torquer camshaft, Katech connecting rod bolts, and Katech LS2 oil pump

 
        Starting at $10,000
 

 
KAT-A4695 Boosted LS2:  6.0L, 364in3
Product potent torque and horsepower with this LS2 derived, forced-induction crate engine. Package includes Katech forged low compression piston-rod assembly, ported LS2 cylinder heads, supercharger compatible camshaft, and MagnaCharger Supercharger Kit. Short block / long block packages available

 
        CALL
 

 
KAT-A4705 4.000"x4.000" Stroker LS2:  6.6L, 402in3
This LS2 derived package features a forged 4" crankshaft, Katech forged piston-rod assembly, and upgraded camshaft

 
        CALL
 

 
KAT-A4710 K.spec:  6.7L, 408in3

A solid performance engine, this package features a Katech sleeved LS2 case, Katech forged piston-rod assembly, forged crankshaft, and Katech CNC ported cylinder heads featuring 2.1" inlet valves

1 in stock and ready to ship

 
        $20,000
 

 
KAT-A4715 Katech C5-R:  7.0L, 427in3
The most radical Gen 3 crate engine yet. Includes a genuine C5-R case, forged crankshaft, Katech forged piston-rod assembly, Katech CNC ported LS6 cylinder heads featuring 2.1" inlet valves and CNC ported throttle body
 
        Starting at $24,000
 

 
KAT-A4684 Value 427 short block: 7.0L, 427in3
The ideal package for the budget-conscious gearhead. Includes Katech sleeved LS2 case, forged 4340 steel crankshaft, Katech forged pistons and Callies Compstar H-beam connecting rods. Available with optional covers, camshaft and pan for Gen 3 or Gen 4 applications. Also available with nitrous or LS7 pistons.

 
        $6,950
 

 
Value 402 short block: 6.6L, 402in3
The ideal package for the budget-conscious gearhead. Includes GM LS2 case, forged 4340 steel crankshaft, Katech forged pistons, and Callies Compstar H-beam connecting rods. Available with optional covers, camshaft and pan for Gen 3 or Gen 4 applications. Also available with nitrous or LS7 pistons.

 
        $5,800