Either a rubber sleeve (think a short hunk of radiator hose) or nip most of the bell off the intake and use a silicone connector - these seem like my best bet. I'll see if the rebuilder has a suggestion.

Dan

That will be the easiest way to do it. If you use rubber radiator hose spray WD40 on it first-that causes the hose to melt onto the aluminum part. The downside with rubber hoses is that the heat and oil vapor will break them down in a couple years (of regular use)

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment

I'll go with silicone if I decide to go that way. We ran them for years on the dyno without issue as long as we supported the joint. We used turnbuckles across the connection.

Dan