Saab B284 v6 head stud kit washer upgrade.
16-piece M11 x .995” O.D. washer set.
ARP “Cat Paw” washer.
- This washer is already included in the head stud kit we provide.
ARP has specifically developed this new take on their washer for use on aluminum cylinder heads. The knurled surface prevents the washer from slipping on the aluminum cylinder head after heat cycles to reduce the occurrence of torque loss at the fastener.