K1100/1200 cylinder head stud washers
Turbo Mini Forums

Hi guys,

As above, I'm looking for a set of the stock BMW k-head hardened stud washers to use on my current twin cam conversion.

Thanks in Advance

Hello mate, I have the ARP head studs, I'll see if I kept the old ones in my box of bits tonight

Thanks a lot mate.

To be honest I was going for the ARP studs myself, but due to the other priority expenses in the build, I think I'll skip those for now.

Hello mate, sorry I checked earlier and unfortunately I don't have the old washers :(

No worries mate. Thanks for checking though :)

You can buy just the ARP washers for a low sum of coinage... I agree that the factory (long) studs are likely just fine for most engines, but you do have to plunder a few engines to get the qty needed!
Also, you don't have to spend that much to buy the individual ARP studs and nuts; suffice to say that SC makes a lot of money on their stud kit... At today's exchange rate the nuts are 13 quid for 10 and the studs are £4.35 each... I imagine washers are similar in price to the nuts...
I do suspect that SCs kit has slightly different studs that are a few mm shorter, and custom washers that are the same OD as the BMW washers (i.e. Larger dia than stock 3/8" ARP washers), so that may go some way to explain the cost differential...

Edited by TurboDave16V on 13th Sep, 2017.

Yeh, I have a set of ARP long studs and nuts sat on the shelf for the new block. I intend to sink the shank of the stud 5mm or so into the block which achieves two things, sets the stud at nearly the right height for the head, and moves the bending stress at the shoulder of the thread below the block deck.

Do not under any circumstance use any standard new studs from any of the suppliers, they are not even up to the job for a standard engine!!!!

Edited by Sprocket on 14th Sep, 2017.