Crankcase Thru bolt Kit for Porsche 911-930 Turbo, 3.0L-3.3L air cooled engines

Crankcase Thru bolt Kit for Porsche 911-930 Turbo, 3.0L-3.3L air cooled enginesThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs

Far superior to OEM fasteners

and has the retaining washer installed

each stud is centerless ground to makeit as close to perfectly concentric as possible

000 psi tensile strength material where noted

Look forARP stamped on each stud as your assurance of quality

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts

For this reason

000 psi bolts that let you exert maximum clamping force

Finish: Cad

as well as with a conventional hex head or 12-point (great for tight

each stud is placed verticallyinto special racks and precisely heat-treated to 190

or if there is deformation