Some folks have emailed me and are asking for clarification on the pricing for this stud kit, citing that Summit and others sell ARP head stud kits for their SBC, SBF, etc. for less than $200, so why are these so expensive?
Comparing this stud set to what ARP manufacture for the US domestic engines is an apples to oranges comparison. ARP’s machines are always set up to turn out domestic stud sets, and their production runs are in the thousands.
The material cost for these studs is a very small part of the overall cost. The largest costs for these Ferrari studs are the engineering, and machine setup, and those are fixed, which is why the price on these studs drops so much with the larger quantities that we’d buy.
With these Ferrari studs, ARP will have to stop their normal production runs, and reset their machines to make our run, which “might” hit a hundred studs, then they’re done. So all that engineering & setup has to be spread out across 100 pieces, not thousands like they do with the Chevy & Ford studs.
I saw graphic evidence of this yesterday when I was designing this very simple 2 hole flange with an o-ring groove in eMachineshop, then I priced it out. For a single piece, the price was $165. For two pieces, the unit price dropped to $100. For five pieces the price was $40, and it kept dropping. By the time I hit 10 pieces, the unit price was down to $20. Incredible but true.
So please don’t compare these stud set prices to Summit’s prices for Camaros and Mustangs – if you want to compare them to something relevant, compare them to the Ferrari stud prices.