The GM LS Gen IV engine dominates the highperformance V-8 market and is
the most popular powerplant for engine swap projects. In stock trim, the
Gen IV engines produce class-leading horsepower. The Gen IV’s
rectangular-port heads flow far more air/fuel than the Gen III
cathedral-port heads. However, with the right combination of
modification procedures and performance parts, you can unlock the
performance potential of the Gen IV engines and reach almost any
performance target.
Engine building and LS expert Mike Mavrigian guides readers through the
best products and modification procedures to achieve maximum performance
for a variety of applications. To make more horsepower, you need to flow
more air and fuel into the engine; therefore, how to select the
industry-leading aftermarket heads and port the stock heads for superior
performance are comprehensively covered. The cam controls all major
timing events in the engine, so determining the best cam for your engine
package and performance goals is revealed. But these are just a few
aspects of high-performance Gen IV engine building. Installing nitrous
oxide or supercharger systems and bolting on cold-air intakes,
aftermarket ignition controls, headers, and exhaust system parts are all
covered in detail. The foundation of any engine build is the block, and
crucial guidance for modifying stock blocks and aftermarket block
upgrade advice is provided. Crankshafts, pistons and rods, valvetrain,
oiling systems, intakes and fuel injection, cooling systems are all
covered so you can build a complete high-performance package.
A massive amount of aftermarket parts is available for the Gen IV
platform and this new book provides guidance and instructions for
extracting top-performance from these engines.
