These are pics of the jig that the intake will be welded on. The two cast sections taken from the old plenum are bolted to this jig when the new center section is welded in place. This both keeps everything lined up propperly and stopps the sections from being pulled out of level by welds.
This is the plate with the pilot holes drilled into it.
And here the holes have been redrilled to the propper bolt hole size.
Thought I'd take the opportunity of having the plate to illustrate the vertical space or lack there of.
