I tried a search but couldn't find results.
Have been blowing out stock and SCJ gaskets, can't get a proper fit.
I'm having a very difficult time sealing my custom full tube headers to my stock D3VE heads. This is a low boost, street supercharged (8-71) application so don't care about flow and wanted the big smog heads (110cc).
Have tried most recently SCJ sized gaskets::
- Mr. Gasket Ultra-Seal Exhaust Gaskets 5954
- Remflex 3011 Exhaust Gasket for Ford V8 Engine. These were very thick, 'guaranteed not to leak' etc but not necessarily for mis matched applications
Gaskets are blowing out in multiple places around the edge of the port. Heads are straight and header surface is clean.
Has anyone run into this before?
Must I port the heads to match?
Am I just not doing a good enough job of aligning the header with the port? There is some front to back play with the flange.
Should I go with solid copper? Should I use two sets?
As you can see, I am in the dark with no experience with this not so popular application. Any advice out there? Thanks!