Exhaust heat riser
Thread Starter
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Elder User
Joined: Sep 2002
Posts: 622
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From: Urbandale, Iowa
Exhaust heat riser
Ok, guys,
A question has arisen in the FE forum. Do the 67 - 72 390's have heat riser valves on the passenger side exhaust manifolds?
There wasn't one on my 68 390. There is one for a 66 GT manifold on ebay, and the parts stores around here list them as far back as 73. My shop manuals for the 68 show them for the 240 and 300, but make no mention of them for the V8 engines. There is one on ebay, http://cgi.ebay.com/ebaymotors/ws/eB...401044616&rd=1
but if you look at it, there seems to be some confusion as to the part number.
I just got off the phone with the Ford dealership, and he says that the 352 had 'em, but not the 360/390.
I'm really confused now. The truth is out there....
A question has arisen in the FE forum. Do the 67 - 72 390's have heat riser valves on the passenger side exhaust manifolds?
There wasn't one on my 68 390. There is one for a 66 GT manifold on ebay, and the parts stores around here list them as far back as 73. My shop manuals for the 68 show them for the 240 and 300, but make no mention of them for the V8 engines. There is one on ebay, http://cgi.ebay.com/ebaymotors/ws/eB...401044616&rd=1
but if you look at it, there seems to be some confusion as to the part number.
I just got off the phone with the Ford dealership, and he says that the 352 had 'em, but not the 360/390.
I'm really confused now. The truth is out there....
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Exhaust heat riser
We’re talking about pickups only, right?
If it had a heat riser, it would have been on the driver’s side exhaust manifold.
Most of the 352’s had ‘em, so did some of the late 360/390’s. They required a special driver’s side exhaust manifold with a flange that was flat so a gasket could fit between the manifold and valve assy. The regular manifolds were carved for a donut.
Barry
If it had a heat riser, it would have been on the driver’s side exhaust manifold.
Most of the 352’s had ‘em, so did some of the late 360/390’s. They required a special driver’s side exhaust manifold with a flange that was flat so a gasket could fit between the manifold and valve assy. The regular manifolds were carved for a donut.
Barry
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Elder User
Joined: Sep 2002
Posts: 622
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From: Urbandale, Iowa
Exhaust heat riser
Hi Barry,
This auction is why I thought it would be on the passenger side for a truck. The guy is probably misinformed.
http://cgi.ebay.com/ebaymotors/ws/eB...category=33632
Anyway, after I wrote, I was looking at my manifolds, and they are both carved for a donut, so I doubt that I need a heat riser. Also, I was thinking that I wouldn't necessarily need it for quicker warm up, since headers wouldn't provide for one either.
Thanks.
This auction is why I thought it would be on the passenger side for a truck. The guy is probably misinformed.
http://cgi.ebay.com/ebaymotors/ws/eB...category=33632
Anyway, after I wrote, I was looking at my manifolds, and they are both carved for a donut, so I doubt that I need a heat riser. Also, I was thinking that I wouldn't necessarily need it for quicker warm up, since headers wouldn't provide for one either.
Thanks.
Post Fiend
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Exhaust heat riser
Actually those are car manifolds. One cars the heat riser valve is on the passenger side.
Personally I don't like valves in the exhaust system. You get enough exhaust pulsing for the crossover to work anyway.
Barry
Personally I don't like valves in the exhaust system. You get enough exhaust pulsing for the crossover to work anyway.
Barry
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