The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - GM LS Broken Exhaust Manifold Bolt Fix (step by step with pics)"

biohazardbill · 10-23-2013, 12:04 PM

Found this thread as I was looking at possible issues I may have when doing this same fix. A friend has told me about updated bolts GM has, however from what I have readt that changed in 04 from a 10mm head to a 13mm. My truck is an 04 and has the 13mm heads. What bolts did you end up using to replace the broken ones? I don't want to have to do this again if I don't have to.

10-23-2013, 12:04 PM	#15
biohazardbill Registered User Join Date: Jan 2010 Location: Forsyth, Ga Posts: 1,012	Re: GM LS Broken Exhaust Manifold Bolt Fix (step by step with pics)" Found this thread as I was looking at possible issues I may have when doing this same fix. A friend has told me about updated bolts GM has, however from what I have readt that changed in 04 from a 10mm head to a 13mm. My truck is an 04 and has the 13mm heads. What bolts did you end up using to replace the broken ones? I don't want to have to do this again if I don't have to.