Dual Exhaust
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Senior User
Joined: Jul 2003
Posts: 126
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From: San Antonio
Dual Exhaust
I purchased a dual exhaust kit from a well known supplier and have some interferance problems. The drivers side exhaust pipe first hit the clutch lever. After fixing that, it next hit the throw-out bearing lever. I fixed that with a little grinding but it is still very close. Has any one else had this problem? I know I have the origional manifold, and am assured that the pipe is correct. maybe I am just overlooking something. Thanks
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
I think most of these are designed for automatics...that's the problem. In all my header installs, the throw out arm always hit the collector flange. Big block and small block applications. I always had to modify the pipe to make it fit and NOT rub or catch.
My '67 had duals and I think they were custom made and had lots of room. That is until I put headers on it and everything was in the way
. A welder is a mechanics best friend 
My '67 had duals and I think they were custom made and had lots of room. That is until I put headers on it and everything was in the way
. A welder is a mechanics best friend
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Senior User
Joined: Jul 2003
Posts: 126
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From: San Antonio
Thanks Freight, I have it working now but I will have to drill another hole in the arm for the TOB spring. I think you are right, if it were an automatic there would be no problem.
Senior User
Joined: Jan 2004
Posts: 116
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From: Athol, Idaho
You said you are running the stock manifold? Not a header? I do not know. I have headers on both of my trucks and the 302 has lots of room (So to speak) but the 390 has no room. I dont think I could even change the started without lifting the engine to move the header far enough to pull out the starter. In other words, I have to take off the header, lift the engine and remove the header with the starter! I will be looking for a custom set up real soon!
On the drivers side, I have plenty of room everywhere, and I have a manual trans too. Go figure.
On the drivers side, I have plenty of room everywhere, and I have a manual trans too. Go figure.
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Senior User
Joined: Jul 2003
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From: San Antonio
Yea, its the 390, it's not the first problem I have haad to work around but I guess thats one of the things that make it a hobby. Just in case you are interested i acquired an MG Midget. When I work on it that is a complete change of mindset. Thanks for the reply.
Lead Driver
Joined: Jan 2003
Posts: 9,893
Likes: 12
From: Ohio
On my 352, I welded the collector reducers right to the header and took off the loose flanges. That way there was nothing in the way of linkage. Had to do that with my '69 also. It has an old set of Blackjacks on it from early 80's. I know they probably have changed things slightly since then. I still welded it though to make sure nothing hit.
