The LS1/LS6 are first in the Gen III family to use coated pistons. Corvette often leads the way with new technology that eventually sees high-volume production.

The LS6’s pistons are a modified version of the LS1’s that have a slight barrel shape, designed to increase efficiency and reduce internal noise.

The camshaft and even the pistons vary among the five 3.78-inch bore blocks, including the aluminum L33. However, all five can be honed to 3.89-inches to use LS1 or LS6 pistons.

The one-year-only LS6 differed in big ways from the less-powerful LS5 by employing aluminum heads (which saved 55 pounds), a Holley carb, a solid-lifter cam, and forged pistons, among other heavy ...

The jovial wrencher has rebuilt the engine, bored it ‘thirty-over,’ taking the actual piston displacement to 460 cubes (7.5 liters), with a pair of 1971 open-chamber heads to lower the ...

This page contains information about the GM 5.7-liter V8 LS6 Small Block engine, including specifications, horsepower, torque, vehicle applications and more.

And to help air retreat from the underside of the flaying pistons, the LS6 has windows cast into the internal crankcase walls. View Photos. AARON KILEY.

However, there was one last stand of piston muscle, ... Among them, the Chevy Big-Block 454 was the absolute and unrivaled apex predator, with 450 hp in the LS6 Chevelle SS.

The 2001 C5 Z06 featured the original LS6 with 385 hp and 385 lb-ft torque at 4,800 RPM. The models from 2002 to 2004 received the upgraded 405 hp engine. Similarly, the CTS-V had an LS6 with 400 ...

1970 Chevelle SS LS6 Drag Races 1963 Plymouth Savoy 426: Video . By Jonathan Lopez. ... all thanks to specs like an 11.25:1 compression ratio, forged steel crankshaft, forged aluminum pistons, ...