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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
135 mm Rod
The ARP Head Stud Kit is a bolt-on kit that requires no additional modifications
these valve springs provide enhanced valve control
Material: Stainless Steel 21-4N
ARP Head Stud Kit, BMW M50 M52 S50 S52 11mm Oversized M54 B25 135 mm RodThis ARP oversized 11mm head stud kit is designed to replace the 10mm head studs in M50 M52 S50 S52 engines for those who want to push the limits of their high horsepower turbo engines. However, it's a MUST to have the block drilled and tapped professionally prior to installation. These head studs are a great choice for increasing boost levels without the cylinder head lifting. While both the 11mm L19 and 10mm Custom Age 625+ head studs are high
