This ARP Main Stud Kit is specifically engineered for use with BMW M10 B18 and M10 B20 engines

this BMW S85 Stroker piston set features:

which can cause additional stress on the head gasket and bolts

leading to valve float and reduced power output

Boost the performance of your BMW M30 engine with a precision-engineered camshaft upgrade from CAT Cams

BMW S54 Valve Springs by SuperTech S38B36 This ARP Main Stud KitDesigned specifically for BMW S54 engines, Supertech high performance valve springs are engineered to deliver exceptional performance and reliability at high RPMs. Made from a premium Superclean Chrome Silicon Vanadium Steel alloy, these springs provide superior strength and longevity, ensuring your engine performs optimally even in demanding conditions. Each valve spring is meticulously crafted using advanced computer aided design, allowing for