Can someone explain this port please

Donny DartO said

So now I understand the crossover port, but is it ok to block it off? And will a gasket just like in this picture do the job?

Click to expand...

And yes, remove the heat riser in the passenger exhaust manifold. We take the butterfly and shaft out, then weld the 2 steel sleeves shut to block the holes.

Now the exhaust will free flow out through the exhaust system, and there will be no hot gasses trying to push across the intake manifold ports with the block off gaskets installed.


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