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What's The Difference Between A GM 602 And 604 Crate Engine?

There is a huge number of crate engines to choose from out there, and while some crate engines will be perfect for big power builds, others are tailored to more specific needs. Both the GM 602 and 604 ...
Motor Trend

GM Performance Parts ZZ383 Dyno Test - Crate Engine Confessional

Dyno days can be a blast, especially when we're pushing the limits of engines simply to see how much power can be gained from various combinations. Albeit, those days aren't always easy; no matter how ...
Hot Rod

Exclusive ZZ632 Crate Engine Build and Dyno at GM’s Performance and Racing Center!

WhereAre ZZ632 Crate Engines Built? The Performance and Racing Center isn't a place that's easy to get into. Why? Well, because this is where GM builds many of its all-out race engines like this LT6.R ...
Hot Rod

Rare LS-7 Crate Engine Finally Fired Up After Sitting in a GM Crate for 44 Years

Let's take a walk back in time—in 1970, Chevrolet introduced the 454 big-block engine. Unfortunately, this was also when government regs were starting to tighten up, and only a few years before the ...
autoevolution

Does Switching From 87 Octane to 91 Octane Bring Any Benefits For an LS3 Crate Motor?

The debate about the link between fuel and power will probably end at some point, but there is always someone who will have a different opinion on the matter. Fortunately, we live in a world where ...