Boxer inlet manifold studs

[Spacenut]

Hi everyone - can anyone confirm the dimensions of the longer of the three studs holding the inlet manifold onto the cylinder head? I need to replace one that is missing. The stud is around 60mm above the cylinder head, with maybe a further 10mm projecting into the cylinder head.

There seems to be any number of vendors selling exhaust studs, which I can understand, but none selling inlet manifold studs that I can find. On the basis that I might have to buy bespoke, does anyone know the main thread/plain shank/secondary thread length, and thread pitch if different at each end?

Any information gratefully received!

Lauren

[LooLooSud33Spider]

Lauren are you on std veloce heads ? I’ll pull one out tomorrow and measure them

[alfadave]

Had a look here.
Loads of bolts, but no studs.
Try Just studs.

[rsfruitbat]

Hi Lauren
When I extended the inlet tract on my 16V heads pretty sure it was just std m8 and I just got a length of all thread.
Rsfruitbat

[justsuds]

pm me your address Lauren and I'll send you a couple.
Cheers, John.

[justsuds]

To actually answer the question, - there is approx 16mm of thread in the head, plus the 60mm that you've measured projecting out of the head, the thread is standard M8 x 1.25.
Cheers,John.