LS HERITAGE
The General Motors engine family commonly called the LS series debuted in the then-new 1997 model year C5 Corvette as the all aluminum LS1 V8.
General Motors called it the Gen III small-block V8 and a year later (the 1998 model year), the LS1 replaced the LT1 small-block in Camaros and Firebirds, which was followed by the iron-block version of the Gen III V8 appearing in the full size trucks and SUVs. The LS1 displaced 5.7 liters, similar to the previous-generation small-block, but the cubic-inch measurement differed slightly: 346 for the LS1 vs. the traditional 350 cubes.
In 1999, the Gen III platform spawned the higher-performance LS6 that was standard in the Corvette Z06. In 2005, the Gen IV branch of the LS family was born, differing from the Gen III with cast-in provisions for fuel-saving cylinder deactivation, larger displacements and revised camshaft sensing. The performance versions of the Gen IV include the LS2, LS3, LS9 supercharged, LSA supercharged and the LS7.
THE BUILD THE PROCCESS
All CBM performance engines are built in house by professional CBM engine builders.
After years of real world research and development CBM Motorsports™ has came up with specifications and parts combinations that provide reliable, high horsepower naturally aspirated LS Performance Engines.
All CBM Motorsports™ LS Performance Engines come balanced, blueprinted and feature:
- GM Engine Blocks
- GM Connecting Rods
- GM Crankshafts
- GM Rockers
- GM Pistons
- GM Springs
TURBOCHARGED VSSUPERCHARGED
Keeping the air that enters the engine cool is an important part of the design of both superchargers and turbochargers. Compress-ing air increases its temperature, so it is common to use a small radiator called an intercooler between the pump and the engine to reduce the temperature of the air.
There are three main categories of superchargers for automotive use:
1) Centrifugal turbochargers – driven from exhaust gases.
- 2) Centrifugal superchargers – driven directly by the engine via a belt-drive.
- 3) Positive displacement pumps – such as the Roots, Twin Screw (Lysholm), and TVS (Eaton) blowers.
