Hey Honda enthusiasts, if you're building or reinforcing a B20 engine, this Supertech Block Guard is a must-have. It's designed specifically for the Honda B20 block – and only the B20, so make sure you've got the right engine. What's it do? Basically, it's a metal sleeve that gets installed in the cylinder block to add strength and stability, especially if you're planning on running higher boost, nitrous, or just want extra insurance against cylinder wall flex. It helps maintain bore roundness and can be a lifesaver for performance builds. Supertech is a trusted name in Honda performance parts, so you know you're getting quality. Installation does require machining and should be done by someone who knows what they're doing, but once it's in, it's a solid upgrade for your build. Whether you're swapping, boosting, or just beefing up a reliable daily, this block guard is a smart move to help your B20 handle more power. Keep your engine strong and running right with this simple but effective piece!