BMW M42/M44 Overbore Cylinder Head Gasket – Performance Replacement

Overview

Upgrade your BMW M42 or M44 engine build with this 87mm overbore multi-layer steel (MLS) head gasket, commissioned by Devil Performance Parts and manufactured by Cometic. Purpose-built for naturally aspirated bored and stroked applications, it’s the ideal solution when factory gaskets no longer clear an enlarged bore.

With a nominal bore diameter of 87.00mm and a compressed thickness of 1.52mm (0.060”), this gasket provides superior combustion sealing and durability under elevated cylinder pressures. Its MLS construction ensures consistent clamping force, improved resistance to micro-leaks, and long-term reliability for performance street and track engines.

Manufactured by Cometic to exact Devil Performance Parts specifications, this gasket is engineered specifically for high-performance NA builds demanding more than stock components can deliver.

Key Features:

87mm bore, 1.52mm compressed thickness

Multi-layer steel (MLS) construction for improved sealing and durability

Commissioned by Devil Performance Parts, manufactured by Cometic

Ideal for overbore, high-compression, naturally aspirated builds

Superior clamping consistency and micro-leak resistance

Note: Please confirm compatibility in the Vehicle Fitment tab before purchase.