View single post by Dakota123
 Posted: 07-24-2019 03:23 pm
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Dakota123

 

Joined: 03-20-2009
Location: Colorado USA
Posts: 185
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 I think I understand that only later JH engines ended up with cast iron exhaust manifolds.  Somehow 10628, a Mk1 from 1972, has a cast manifold.  (Not noted in the service records, of which I have every one up until about 1990.)  I'm finishing up my 2.2L, should be ~200 hp trim when all is said and done, and wondering if I'll be leaving much on the table by not going to a header.  The cast manifold has been trouble-free, and doesn't seem like a horrible design, really.
TIA