Have you installed yet? If so how was the fit? I am waiting to install mine when time allows.
I first went through & checked the welds.
Very nice welds.
Secondly checked for slag. Very minimal.
I saw this post & checked the gaskets compared to our copper SCE gaskets.
The gasket supplied with Sam's headers are the exact same dimensionally as the T/A gaskets. The T/A's are opened wider then Sam's.
I held up the T/A gasket to a set of heads & they are right on.
So this put a question in My header what isn't lining up?
I remember last week with a pair of Mild Steel T/A's I welded around the outside of the pipes & ground the flange down for a better fit.
Then I looked at Sam's & that is what is going to have to happen as well here.Nice thing is Sam's are already welded on the outside so that leaves plenty of meat to grind into.
This is what I'll be doing tonight.
I lined up # 3 cylinder with the gasket.
On #1 & #5 cylinder you will see that 3/16" will have to be ground down on the flange.
This will not be a problem because you are grinding away the flange not the actual pipe.
I'll take some pics & document it. Not really a big deal since I had to do the same thing to the T/A's to get the look I wanted. On the average very good port job neither would have to be touched & would not restrict exhaust flow.
I'll take some pics tonight & work on the driver's side header. I'll do a comparison of the gaskets. Then the amount of grinding.