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

Replaced broken factory bolts on 2005 Silverado.

The bomb!!

Arp

Description misleading, my headers require 3/8 -16 thread, description describes 3/8 flange not thread size

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

Best Bolts. ShortyHeaders install 4.8 v8 07 Silverado 1500 z71 (new body style) torque to 11lb.ft start it, let it get hot, then torque to 18lb.ft. Good to go, have not came loose yet.

Works good for headers I put on my 2015 camaro ss.

had to replace the header gaskets so decided to go with new bolts while theyre off. I have always used ARP in all my cars. No problem whatsoever and like always a perfect fit. 2010 Camaro SS LS3

Highest quality fastener you can buy. Make sure you measure your header flange like I didnt. Got lucky and ordered right one this time.

Worked great on my 2015 silverado 5.3