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

Chevrolet Performance LS3 Camshaft Dyno Test

If you want a fresh powerplant, nothing beats the ease and value of a new crate engine. But, since many of us always crave “just a bit more power,” it’s nice to know it’s only a few speed parts away.
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 ...
Hot Rod

GM Performance Parts LS3 Engine Build Part 3 - Late Crate Update

The success of this project can be traced directly back to our starting point. Right out of the box, the GMPP LS3 crate motor is an impressive little small-block. Think about how cool it would have ...