Supertech Block Guard (D Series)

High-Strength 6061 Aluminum Alloy CNC-Machined Precision Fit 3 Different D Series Engine Fitments Available Provides Enhanced Durability Description Vehicle Fitment Included The Supertech Block Guard for Honda D15B, D16Z, D16Y, D16ZC, and D17 engines is a crucial upgrade for those looking to reinforce their engine's durability. A Block Guard fills the gap between the outside of the cylinder wall and the rest of the block, providing added rigidity to reduce flexing and prevent cracking. This enhancement is essential for high-performance engines that endure extreme stress. Supertech Block Guards are meticulously designed and tested to support highly stressed cylinder walls and maintain optimal engine cooling. They are crafted from high-strength, corrosion-resistant 6061 aluminum alloy, ensuring long-lasting performance. Each guard is computer-designed and CNC-machined for precise fit and function, allowing adequate water flow to critical areas and avoiding destructive cy