Sale 14% Off SWAG Performance HD Cylinder Head Stud Kit - 01-16 GM 6.6L Duramax Diesel SWAG Performance Heavy Duty Head Stud Kit Fits 01-16 GM 6.6Â Duramax Diesel Engines Tested at 220,000+ PSI Tensile Strength Our Head Stud material properties allow for far grea MSRP: $309.95 Was: $309.95 Now: $265.00 Add to Cart The item has been added