ARP reinforced cylinder head studs, Triumph TR4

ARP strong bolts and fasteners, Triumph TR4 head studs

ARP produces one of the strongest bolts and other accessories in the industry. Head studs, flywheel bolts, crankshaft bolts, bearing bolts among many other applications.

In tuned engines the forces stressing the bolts are on a next level. Many of the failing gaskets or fractured parts could have been avoided with strong bolts. Stock bolts tend to stretch and break by time, causing a variety of problems. ARP is “The” house of bolts we all know, not just from their aftermarket bolt upgrades but countless OEM or 3rd party applications as well.

• Fitment: Triumph TR4, 12-point nuts.
• ARP kit number: 206-4207
• Heavy duty ARP bolts, particularly great for demanding use in tuned engines.

Read more about ARP technology and different factors playing a part when it comes to bolts:

Information about ARP technology

Remember to always use ARP installation paste when fitting ARP bolts!