24V BOA/BOB ARP Head Studs

Hi all,

Im looking for some ARP head studs for my BOB 24v Cosworth.

From the research ive done, BOA/BOB head bolts are M12 x 1.75 and 115mm long.

I've also found YB head bolts 'may' be M12 x 1.75 and 115mm long.

Can anyone confirm this?

If so, i could purchase 2x ARP head stud kits for the YB cosworth and use those?

Alternatively, does anyone know any other solution?

Many thanks

You could order from Tom Morana Racing

Hi Stuart,
You can buy 12.9 bolts instead of ARP. They are not as hard as the ARP but you will get great tightening with those. And they are also cheaper.

Go to the closest bolt warehouse and look for M12 x 1.75 and 115mm long 12.9 bolts. It will work great!