Motor Trend

LS3 Cylinder Head, Cam, and Intake Swap - Crate LS3 Throw Down

These days, opting to build a Mouse motor over an LS small-block probably means that familiarity and practicality both stepped into the boxing ring, and the former won via TKO in the 12th round. With ...
Hot Rod

We Test Three Different LS3 Intake Manifolds for Performance

One of the easiest ways to tune an engine's performance is with the intake manifold. Yes, the camshaft can have a bigger role in horsepower production, but a camshaft swap includes real work and more ...
Hot Rod

First Look: Performance Design’s XS Intake Manifold for LS3 V-8

A stock LS3 rec-port intake manifold is hard to beat and only costs $299. When Chevy went back to the drawing board after the success of the cathedral-port Gen III LS1 small-block V-8, it realized ...
GM Authority

GM Gen. 5 Small Block Deep Dive Part II: The LT1 Valvetrain, Intake, Exhaust And Cylinder Heads

For Part I, covering the new combustion system, direct injection, and active fuel management: click here. For Part III, covering the block, crankshaft and lubrication systems: click here. Continuing ...