I took a set of hooker shorties off of another ls1 and am going to put them on my car.. However, i didnt think to keep any of the bolts? Will the stock bolts from the manifold work to bolt up the headers?

and also, ill need a new seal for both headers where they connect to the Ypipe? Any suggestions on where to get those???

 

Shouldn't this be in LS1 Tech?

 

I'm not sure how LS1 manifold bolts are but I'd go out and buy a set of ARP header bolts or Stage 8s. I have ARPs and they work perfectly. You can buy collector gaskets anywhere. Summit, Jegs, or any speed shop would have them.