Aluminum Intake Heat Crossover
Is that a hole above the crack? If so, you may be able to clean up the base metal as clean as you can and then weld the crack and hole shut and then weld the crossover shut on both sides of the intake.
That may be easier than doing the fill fix. Once you weld the crack, if you don’t cut the exhaust heat off going to the intake it will fracture again.
I think either method will work.
