Head Stud Kit, 12-Point Nut AR9994216 Product:fits Nissan RB30 & RB30ET SOHC With 1/2" Studs 135° or straight ceramic spark

135° or straight ceramic spark plug boots

The Apex Phantom utilizes advanced

AF77-2003BLK

High Pressure spring (included) supports 75-120 PSI base fuel pressure

Head Stud Kit, 12-Point Nut AR9994216 Product:fits Nissan RB30 & RB30ET SOHC With 1/2" Studs 135° or straight ceramic sparkHead Stud Kit, 12 Point Nutfits Nissan RB30 & RB30ET SOHC With 1 2" Studs AR9994216 9994216 It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP only uses premium grade 8740 alloy and a proprietary ARP2000 alloy that are rated far superior to "aircraft" quality alloy