[mgarblik]

Originally Posted by GTOGEORGE

Having ARP make you something it like BEND over and here it comes! I tried and to get them to make a better grade head stud........damn it was a lot and then once we settled on a price they raised it on me! Seriously the Bolt they (ARP) make for the crank should be good enough...........i think his hub cracked at the keyway.


GTO George

The ARP crank bolt was way too short for our deal with the RCD hub, which is why we went with an L9 bolt from McMaster Carr. I had to buy a box of like 15 or 20 of them so I have a few spares if the OP needs one. He will have to make our super thick step washer for the whole deal to be the right length though. Custom one-off parts like the head studs you wanted or a special 5/8" fine thread stud can get crazy expensive. Places like ARP are set up for big production runs. Little odd requests, just seem to upset them.
Trivia: When Eric designed our billet Ram Air V heads, he designed them around ARP's EXISTING 9/16" studs to avoid the custom fastener issue. That was a smart move.