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 ...
Hot Rod

LS3/L92 Rectangle-Port Cylinder Heads Test - The Even More Ultimate LS Cylinder Head Test - Speed Parts Testing

Loyal HRM readers will no doubt remember our "Ultimate Chevy LS Cylinder Head Test" in the Dec. '10 issue in which we tested 11 different LS1/LS6 cathedral-port-style heads. In this issue we're doing ...
Motor Trend

Cathedral v.s. Rectangular Port Cylinders - Head To Head

The question of the day seems to involve the difference between the original cathedral-port and modern rectangular-port LS heads. More specifically, which one is better? Were we to compare two sets of ...
GM Authority

Lingenfelter Offers Carbon Intake Manifold For LS3 And LS7 Engines: Video

For more than four decades, Lingenfelter Performance Engineering has been churning out a slew of wild high-performance products, from engine upgrades, to parts, to crate engines. Now, the tuner is ...
Motor Trend

LS3 Small-Block Build - Monster Mouse, Part 1

With the success of our Modern Mouse series, we decided it was time to recognize the big-bore crowd. Loyal readers of Super Chevy will remember the Modern Mouse series started with a stock 5.3L LM7 ...