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"Ported S" compressor cover 4
They are designed to replace BMW part #11241725809 and #11241747131 in the BMW M60B30
Improved throttle response and expanded power band for better drivability
The M54 engine has a stock bore of 84 mm and a thickness of 0
Aerospace-grade alloys for maximum durability
ARP Head Stud Kits, BMW Engines 750Li "Ported S" compressor cover 4BMW ARP head studs are high strength fasteners designed to secure the engine's cylinder head to the engine block. These studs are typically made of high quality materials such ARP2000, L19, Inconel, and Custom Age 625+, which provide exceptional strength and durability. ARP head studs are commonly used in high performance, racing, and forced induction BMW engines where increased cylinder pressure and higher operating temperatures can put excessive
