• Strengthen and support upper cylinders walls in open - deck Honda/Acura engines. • CNC - machined from AL6061 for maximum coolant passage, reducing head gasket failure and cracked cylinder sleeves risk. • Essential for forced - induction engine applications. Made in the USA. **Vehicle & Engine Applications**: - 93 - 96 Prelude Si VTEC (H22A1) & JDM Variant (H22A) - 97 - 01 Prelude VTEC Base & Type - S (H22A4) - JDM H23A VTEC - JDM H22A/A7 Euro Accord Type - R - JDM H22A Prelude Type - S / S - Type - JDM F20B VTEC Accord SiR

This Blox Block Guard is designed for Honda and Acura car owners who want to enhance the performance and durability of their engines. It's perfect for those with forced - induction engine applications. You can use it when you're looking to upgrade your engine's protection. It's made from AL6061 and is CNC - machined in the USA, ensuring high - quality craftsmanship.