LS3 Swap into a K5 Blazer: Step-by-Step Guide

Haha, that’s true! At least with an LS3, if it does go up in flames, you’ll know it has a lot of power behind it! But seriously, testing each connection first is key.

Great topic! Tuning the LS3 after a swap is crucial. Start with a quality exhaust system. I recommend long-tube headers for better flow, which can significantly improve performance.

I totally agree! Long-tube headers really unleash the power. Also, consider a high-flow catalytic converter for better performance.

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Don’t forget about cooling upgrades! A better radiator and electric fans can help manage the increased heat from the LS3, especially during off-roading.

Definitely! I’ve considered an aluminum radiator for its lightweight and cooling properties. Any specific brands you recommend?

For tuning options, I advise looking into a custom tune rather than off-the-shelf ones. It can make a world of difference in performance and drivability.

I’ve heard that! How do you find a good tuner? Any recommendations based on your experiences?

If you’re into off-road, make sure to upgrade your suspension too. It helps handle all the extra power from the LS3 and keeps the ride smooth.

Absolutely! I swapped out my springs and used heavy-duty shocks. It’s a game changer off-road!

I wonder how well the stock transmission handles the LS3. Should I consider an upgrade, or will it be okay for moderate driving?

Honestly, it could be a gamble. If you’re planning to really push the LS3, upgrading to an aftermarket transmission is wise. Better safe than sorry!

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