Author Topic: Installing new exhaust manifolds  (Read 837 times)

Offline Cooke

  • Posts: 213
  • 1968 Cadillac Eldorado
  • Name: Martin Cooke
Installing new exhaust manifolds
« on: September 25, 2011, 06:42:18 PM »

I am installing new (to the car) exhaust manifolds on my 1930 Cadillac V8 and I am trying to find out what the best method or material (and who sells it) to seal the connection between the Y pipe and the passengers side manifold. It is just two pipes that slide into each other, I would think some type of rope graphite or asbestos?? Any ideas or proven methods are appreciated.

Thanks, Martin Cooke

Offline harry s

  • Harry Scott 4195
  • Posts: 1924
Re: Installing new exhaust manifolds
« Reply #1 on: September 25, 2011, 08:41:35 PM »
  The easiest and best way to connect the manifold pipes is to find a piece of exhaust pipe with an OD that closely matches the ID of the Y pipe connection. You can then use an exhaust pipe expander and expand the pipe to a point where it is a press fit to the Y pipe. Use a good sealer and fit the pipe and manifold together and attach to the engine. I used this method on a '30 V8 and a '31 V12 and they have held up well. Good Luck, Harry
Harry Scott 4195
1941 6733
1948 6267X
2011 DTS Platinum


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