Modifications for your 5.3L Vortec V8 engine are a lot like eating potato chips ... you can't stop at just one. It starts innocently enough with a cold air intake, because hey, who doesn't want better ...

There's no denying the popularity of GM's line of LS engines and their many variants. And onof the most prevalent, and popular, would be the 5.3L LM7 Vortec. There are hundreds of thousands of these ...

When it comes to buying a brand-new truck, many people still think the stock performance is all that’s available. Fortunately, with today’s engines, if you desire more performance from your truck, ...

It doesn't matter whether it's a lowly LM7 or a top-of-the-line H.O. sporting higher compression and 243 heads, everyone loves 5.3L truck engines. The 5.3L has quickly become the go-to engine for ...