Main Studs Kit, Fits HOLDEN 253, 304, 308, 5.0L EFI V8 - 2 Bolt, 6 Point Hex, 7/16 studs

ARP 205-5401 MAIN STUDS KIT FITS HOLDEN 253 308, 304, 5.0L EFI. 

ARP Holden V8 main studs kits help eliminate main cap walking & fretting with the extra hold force. In addition, studs protect the threads in your engine block. These Holden Main Studs are made from 8740 chromoly steel and heat-treated in-house to 190,000 psi tensile-strength rating. These main studs kits are a true upgrade for your high powered holden V8.

Suits following engines with 2 Bolt Mains.

Holden 253 4.2 308 5.0 V8,

253 Red & Blue Motor

308 Red, Blue & Black

LB9 5.0 Litre (EFI)

Main stud kit (pro series 200000 psi) 10 studs 7/16 x 4¨

Note: Suits 2-bolt mains only

Specifications

Material:                Chrome-Molybdenum Steel

Colour:                   Black

Nut Head: 6 point Hex

Spanner:                Size 5/8

Allen Key end:                Size 3/16

Pressure:               [psi] to 190000

Quality/Grade:      8740