500, 472, 425, 368 Discussion, Anyone ever see one of these? in Cadillac Engine Technical Discussion; This sleeve was inside the header pipe on my Eldorado. It looks very restrictive. No wonder the manifold was cracked ...
Automobile(s): Cadillac 78 Seville, 78 Coupe de Ville, 92 Sedan de Ville
Re: Anyone ever see one of these?
Yeah, there is something strange there. I have seen cracked manifolds only very rarely. Will the header pipe bolt on without that reducer thing? I would definitely try to elimnate it somehow. I hope an Eldo owner can chime in.