LS Gen III vs Gen IV Swap Guide
Do you know which generation LS based engine you have? One of the most misunderstood components is identifying what engine block you actually have.
Even though most parts can interchange on LS Based engines, it is important to know the differences between a Generation 3 and Generation 4 LS engine.
There are many things that are different between these two generations of engines and can really be difficult to decipher what parts you need for your build.
Please refer to the guide below for a few visible differences between the Generation 3 and Generation 4 engines.
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