Performance Head Gasket Kit for Volvo S40 (2005-2011) 2.5L

High-Torque Performance Head Gasket Kit for 2005-2011 Volvo S40 (P1)

What it Does: The Performance Head Gasket Kit seals the cylinder head to the engine block on the 2005-2011 Volvo S40 2.5L to withstand elevated combustion pressures and prevent fluid cross-contamination under boost.

The Stock Volvo S40 Head Gasket Failure Point

The factory 2.5L turbocharged inline-5 (B5254T3 and B5254T7) in the P1 chassis is prone to thermal expansion differentials between the aluminum cylinder head and open-deck block. Under sustained thermal stress and boost cycling, factory composite fire rings degrade, leading to combustion gas blow-by into the cooling passages, coolant loss, and warped valve seat interfaces caused by localized exhaust gas overheating.

The Engineering Solution

This overhaul kit utilizes a multi-layer steel (MLS) head gasket engineered with embossed spring-steel sheets and a high-temperature fluoroelastomer coating to maintain clamping force across all five combustion chambers. By accommodating cylinder head micro-motion without losing tension, the MLS structure prevents liner leakage. Paired with high-yield tensile cylinder head bolts and precision-machined intake and exhaust valves, this assembly restores factory valvetrain geometry and stabilizes compression ratios.

What's Included

• 1 Multi-layered Steel (MLS) Head Gasket Kit
• 12 Cylinder Head Bolts
• 10 Intake Valves
• 10 Exhaust Valves

Technical Specifications

Compatibility

• 2005-2011 Volvo S40 2.5L L5 Turbocharged (FWD / AWD)

Frequently Asked Questions & Fitment Warnings

Does this fit the P1 S40?

Yes, this is a direct fit for the 2005-2011 Volvo S40 equipped with the B5254T3 or B5254T7 2.5L engine. Confirm your engine serial number before ordering, as early production cutoff variants may vary, and this does not fit naturally aspirated 2.4L models.

Are the included head bolts torque-to-yield?

Yes, the included 12 head bolts are torque-to-yield and must be installed using factory torque-plus-angle tightening sequences without reuse.

The Volvo Precision Standard

European turbo-five engines demand micrometer-exact deck surface prep and rigid tension to ensure proper seal integrity without throwing diagnostic fault codes or losing boost pressure.