Head Stud and Valve Spring COMBO 4

Elevate your engine’s performance with our Head Stud and Valve Spring Combo 4 – a comprehensive package designed to enhance the strength and reliability of your setup. This combo is perfect for those considering valve spring upgrades or head stud replacements, ensuring a seamless and effective solution for your engine needs.

4 Tune Performance Head Stud Kit:

• This popular Head Stud Kit has been custom-made with oversized washers and nuts for exceptional performance.
• Crafted from aircraft-quality high-tensile strength chromoly steel, these studs are cold-forged to ensure molecular integrity and then heat-treated for optimal strength.
• Achieving a strength rating of 220,000+ psi, these studs are designed to meet or exceed industry standards, providing the reliability needed for high-performance applications.
• CNC-machined oversized washers (25mm OD, 12mm center hole, 3mm thick) and 12-point oversized nuts eliminate common issues associated with smaller washers.

Atomic Performance Valve Springs

#306800 – Extreme Duty Valve Springs to suit Ford DOHC 6 Cylinder Engines

• Tension: 80 lbs at 1.490″
• Tension at .500” valve lift: 175 lbs
• Coil bind: 23.5mm/220 lbs
• Recommended for boost levels not exceeding 1.8 bar (27lbs)
• Uses standard retainers or Atomic