FA20 Engine Closed Decking Service

For Subaru BRZ, Impreza WRX (2014+), and Forester

Our FA20 Engine Closed Decking Service is designed to elevate the performance and durability of your Subaru FA20 engine, particularly under high-load conditions. This service is ideal for those looking to push the limits of their engine's horsepower while maintaining reliability and cooling efficiency.

Service Features:

• Enhanced Cylinder Support: Closed decking involves machining the top plane of the engine case to accommodate CNC machined inserts. These inserts provide crucial support to the cylinders, preventing flex and cracking, especially under high-pressure scenarios common in modified engines.
• Maintained Cooling Efficiency: The process is engineered to preserve the original cooling capabilities of your engine. All coolant bores in the head gasket are incorporated into the inserts, and an extra cooling passage can be machined to enhance coolant flow under the head gasket, ensuring that your engine stays cool even under extreme conditions.
• Improved Engine Performance: With the additional cylinder support, your FA20 engine will be able to handle increased power levels more reliably, making this service a must for anyone aiming to achieve higher horsepower.

Complementary Services:

Closed decking is often paired with our Line Boring Service for FA20 engines. Line boring corrects the main bearing housing alignment and roundness, ensuring that your engine runs smoothly and efficiently.

Comprehensive Support:

We offer a full-service package that includes the pickup and re-delivery of your engine case after all chosen engineering processes are completed. Your engine case will be ready for immediate assembly, or you can opt to have it professionally assembled by our expert team.

Contact us today to discuss how our FA20 Engine Closed Decking Service can help you unlock your engine's full potential.