Supertech Block Guard for Nissan QR25DE

This is a Supertech block guard specifically made for Nissan QR25DE engines. It's designed to reinforce the cylinder block, helping to prevent cracking or distortion, especially in high-performance or boosted applications. By adding extra support between the cylinder sleeves, it strengthens the block's structure.

The QR25DE engine is known for its power potential, but the block can sometimes be a weak point under extreme stress. This block guard is a well-built piece that adds a significant layer of protection. It's made from solid aluminum, which is lightweight but strong enough to handle the increased pressures. Installing this can give you more confidence when pushing your engine hard, whether you're building a track car or just want extra durability for daily driving.

When installing, ensure the block is clean and properly prepped. This part is a popular choice for tuners looking to build a more robust QR25DE engine.