These are the absolute ultimate stainless steel head bolts for the Harley Vintage Sportster engines from 1957 to early 1973.
This kit comes with 8 bolts and washers. You can them in ARP 6pt or 12pt.
Manufactured from custom 450 Stainless! Heat treated/Age hardened to 180,000 PSI! (That’s stronger than grade 8 steel) Centerless Ground! Roll Threaded after heat treatment!
The ARP Logos and manufacturing marks have been removed and hand polished to a beautiful mirror finish that will never chip, peel, or rust!
The image is of our regular polished kit.
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