ARP Chevy LS 3/8in Flange Hex Header Bolt Kit

nice.

Best there is. 100% satisfied

Installed headers. Been riding on them for about a month now.

Installed on an 09 G8 GT, fit perfect, and of course stellar quality. Perfect for anyone doing headers or replacing factory manifold bolts on LS based blocks. It’s also a lot more convenient and easier to use a 10mm wrench in the spaces since the head is smaller on these. With them being smaller it even stopped the bolt from contacting the spark plug heat shield

Bolts came open and missing 2 washers ..

Got these for my 2007 Silverado when replacing the engine. Considering how often the factory bolts break, my mechanic thought this was a great idea.

Arp

ARP is a great company, with great products!!

The bomb!!

Worked great.