Buick 401 425 Nailhead Grade 8 ARP Stainless Steel Engine Bolt Kit

Dress Up Your 401-425 Buick Nailhead Engine With This awesome 168 Piece Polished Grade 8 Stainless Steel ARP bolt kit!!

ARP grade 8 stainless bolts have a tensile strength of 170,000 psi. That’s slightly stronger than grade 8 steel bolts! Yet they are extremely resistant to rust and corrosion. More resistant than 304 stainless!! They have a reduced size hex and a flanged head for easier installation in tight spots.

We make these bolt kits from our stock of ARP bolts to our specs. All bolts and washers in the kit are polished. Our washers are custom made to our specs. As you can see in the picture, we don’t just send all AN flat washers like you will get elsewhere.

6 point bolts are shown in the picture, but you have your choice of 6 or 12 point bolts. Just let us know with the payment if you want 12 point. If you are using aftermarket parts on your engine, let us know and we will custom build a kit that fits your combination!

This is a high quality grade 8 stainless steel ARP bolt kit. The kit includes individually packaged and labeled component kits for the following:

Intake Manifold- Valley Cover- Timing Cover- Water Pump- Oil Filter Housing- Oil Pan- Thermostat Housing- Distributor- Fuel Pump- Valve Covers