P1 Volvo S40 C30 V50 C70 Block Shims

Pro Xe Automotive P1 Volvo T5 Block Shim Kit 

Built for high-boost reliability on the Volvo P1 T5 platform.

The factory open-deck design on P1 engines (S40, C30, C70, V50 T5) is known to become a limitation once cylinder pressures increase. Under higher boost levels, cylinder wall movement can occur — leading to head gasket failure, sealing issues, or long-term block distortion.

Our Pro Xe Block Shim Kit reinforces the upper cylinder walls by filling the open deck gaps, increasing structural support where the block needs it most.

Designed For:

• High boost applications (350+ HP builds)
• Hybrid turbo setups
• Built engines running increased cylinder pressure
• Customers looking for added peace of mind during a head refresh

Benefits:

• Reduces cylinder wall flex

• Improves head gasket sealing under boost

• Increases block rigidity

• Ideal during head gasket or engine rebuild service

• Proven solution for performance-focused P1 builds

These shims are precision-machined for proper deck fitment and designed to install during cylinder head removal. No permanent modification to the block is required when installed correctly.

If you’re pushing your P1 T5 beyond stock power levels, block shims are cheap insurance compared to the cost of a failed head gasket or cracked block.