Katech: KAT-A4740 Air Attack LS7 SC: 7.0L, 427in Engine

Extreme forced induction performance for the LS7 engine. This package includes Katech forged low-compression pistons, DLC coated pinsforged steel connecting rods, main stud girdle, main and head studs, upgraded camshaft and upgraded valvetrain.

Application: Hot rods, off-road vehicles, show cars
Displacement: 427ci, 7.0L
Bore: 4.125
Stroke: 4.000
Compression ratio: 9.0-10.0:1
Fuel: 93 octane
Boost: 7-10psi
Horsepower: 700-750+
Torque: 685+
Block: LS7 with stud girdle and ARP studs
Heads: LS7 with ARP studs
Crank: Callies forged steel
Connecting rods: Callies H-Beam forged steel
Pistons: Katech forged aluminum with DLC coated pins
Camshaft: Katech Air Attack LS7
Oiling system: LS7 dry sump
Supercharger: Magnuson M122 high-helix or TVS2300
Throttle body: 105mm cable