ARP Head Stud Kit B20VTEC (B16A Head)

ARP Head Stud Kit B20VTEC (B16A Head)

The ARP 208-4306 Head Stud Kit is engineered specifically for Honda B20VTEC builds using a B16A DOHC cylinder head. Manufactured from 8740 chromoly steel and precision centerless-ground for superior strength, these studs deliver consistent clamping force and reliability under extreme cylinder pressures. This kit is a must-have upgrade for high-compression, turbocharged, or high-RPM applications.

Key Features:

• Designed for Honda B20B block with B16A DOHC head

• Thread size: M12 × 1.5 block end / M12 × 1.25 nut end

• Under-head length: 7.600″ (long) / 6.850″ (short)

• 12-point nuts included for easier torqueing in tight spaces

• Hardened parallel washers for even load distribution

• Material: 8740 chromoly, heat-treated to 190,000 psi tensile strength

• Black oxide finish for corrosion resistance

• Pack includes all studs, nuts, washers, and assembly lubricant

Uses / Applications:

• Ideal for B20VTEC hybrid builds where a B16A head is mated to a B20 bottom end

• Prevents head lift and blown gaskets under high boost or compression

• Provides greater strength and reliability than OEM head bolts

• Essential for motorsport, drag, and high-performance street builds

Installation Notes:

• Clean and chase all block threads before installation

• Apply ARP Ultra-Torque fastener assembly lubricant to threads, nuts, and washers

• Torque in multiple steps, following ARP’s recommended sequence:

  • Final torque: 80 ft-lbs with ARP Ultra-Torque lubricant

• Apply thread sealer if studs protrude into coolant passages

Factory Part Number: 208-4306