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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
557-16-12S
827" Pin dia
Hemi 6cyl & Ford 6cyl X-Flow
Monitor the power of your Holley EFI system at a glance
Spring-Loaded wedges are already installed
ARP Chromoly Header Stud Kits 100-1403 Rocket 557-16-12SBrand: ARP Manufacturer's Part Number: 100 1403 Part Type: Header Fasteners Product Line: ARP Chromoly Header Stud Kits Automotive Fittings Part Number: ARP 100 1403 UPC: 672036000196 Fastener Style: Stud Thread Size: 3 8 in. 16 Head Style: 12 point Overall Length (in.): 1. 67 in. Fastener Material: 8740 chromoly Fastener Color: Black Fastener Tensile Strength (psi): 170,000 psi Quantity: Sold as a set of 16. Description: ARP manufactures a variety of
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