For the high HP applications, we also offer a custom made 14mm head stud (black, right image) constructed from L19 alloy. In order to use the 14mm head studs, the block and cylinder heads will need to be modified. This is an option when purchasing our Pro Series block.

Both kits include necessary nuts, washers, assembly lube and installation instructions with torque specifications. Sold as set for one complete engine.

Dowels are included in price and are required for installation