I'm looking for a few dimensions for typical aftermarket long tube headers used in 4th Gen F-body's. I need the outside to outside (max width) measurement from one side to the other when bolted in, and the distance (height) from the exhaust port centerline to the collector centerline (I know the SLP headers are typically lower than most). Do any of the aftermarket header suppliers have technical drawings available?

Also, if anyone has good detailed pics of your LS1 headers before installation, I'd love to see them.

Oh, and I tried doing a search, but came up empty.

Thanks in advance.

 

You working on a LS engine swap?

If so, I'd recommend talking to the guys in our Hybrids & Conversions section.