ARP Main Stud Kit for all 4.6L / 5.4L Iron Blocks with Factory Windage Tray

Every 4.6L / 5.4L Engine we have ever disassembled with a broken oil pump showed signs of main cap walk and still had factory main bolts. We have assembled hundreds of engines using the stock oil pumps with ARP Main Studs and not had a single bearing or pump failure. With that being said, this is not an area to cheap out on. ARP Main Studs are a must for all performance engine builds and we would never assemble a performance engine without them!

• Fits all 4.6L / 5.4L Iron Blocks using a Cobra Windage Tray, including the Boss 5.0L Blocks
• Uses 4 Longer Studs to secure the Windage Tray 
• Highly Recommending on all High RPM Applications or any engine making over 500 HP.