Supertech Block Guard for Subaru EJ20 (2 per engine)

Made from solid 6061-T6 aluminum, this Supertech block guard is designed to reinforce the cylinder walls of your Subaru EJ20 engine. When you're pushing your EJ20 hard, especially with modifications that increase boost pressure, the thin sections between the cylinders can become a weak point. This guard fills that space, tying the cylinder walls together and making the whole block much stronger.

The EJ20 is known for its performance potential, but it needs to be able to handle the extra stress. By adding this block guard, you're adding a significant amount of rigidity to the bottom end. This helps prevent cylinder wall flex and distortion under high loads, which can lead to issues like blown head gaskets or cracked cylinder walls. It's a popular modification for anyone looking to build a more robust EJ20 for track days or serious street performance.

This block guard is sold individually, and each EJ20 engine requires two units to fully reinforce the block. Make sure you order the correct quantity for your build. It's a straightforward addition during an engine rebuild or when you have the block apart.