Cylinder Stud & Head Bolt Kit - '17-'23 M8 Models
Studs
8 studs with rounded thread roots, rather than flat, improving fatigue strength
4140 Chrome Moly studs, oil quenched and tempered to 39-44 HRC
Positive stop shoulder allows for consistent installed height
180,000 psi tensile strength
Head Bolts
Reusable
14% increase in strength over stock
Heat treated 8640 steel
200,000 psi ultimate tensile strength
8 - head bolts with integral washer
Formed threads
Cold formed head
Compatible with both MLS & graphite head gaskets