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 ...
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

LS3 Cam and Cylinder Head Swap - Late Crate Update

Starting with an increase in displacement, the LS3 checks in at 6.2 liters (376 ci) versus the previous 6.0L LS2 combination. This comes courtesy of an increase in bore from 4.00 inches (in the LS2) ...
GM Authority

Katech Engines Releases Its LS3-Based 416 Short Block Engine For $5,899.99

Katech Engines has released its LS3-based, 416-cubic inch short block with a price tag of $5,899.99. That’s a pretty penny, and a fair bit more than the competing 427-cubic inch short block by ...
GM Authority

This LS3, Though

When tuning an engine, especially a GM small block, the majority of individuals are more concerned with how much power it makes rather than how it looks. But such isn’t the case with Nathan Moreno and ...