I own a 2004 1500 with the 4.7 in it, I wanted to buy shorty headers for it, but wanted to know if the 5.7 had the same bolt pattern for the manifold or if they were different. Main reason was because the 4.7 and 5.7 headers have the same part number, but the 5.7's headers were around $150 cheaper.

 

Good question and IDK. But with them having the same P/N you would think they would have to be the same. Where are you looking at them at?