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EQ or magnum heads with Manifolds #1283006 08/10/12 04:09 PM 08/10/12 04:09 PM
Joined: Jan 2003 Posts: 7,978 Bethel Ct A AdamR OP master
AdamR OP master A Joined: Jan 2003 Posts: 7,978 Bethel Ct	Is anyone running EQ or factory Magnum heads with exhaust manifolds ? My motor has a set of worn guides (73 Duster 318 and I dont want to put money in to the stock 318 heads but I also dont want to run headers.

Re: EQ or magnum heads with Manifolds [Re: AdamR] #1283007 08/10/12 04:15 PM 08/10/12 04:15 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Quote: Is anyone running EQ or factory Magnum heads with exhaust manifolds ? My motor has a set of worn guides (318 and I dont want to put money in to the stock 318 heads but I also dont want to run headers. I'd venture to say there are probably a couple of million Ram trucks out the running stock magnum heads with exhaust manifolds. So I am not sure what you are asking here. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: EQ or magnum heads with Manifolds [Re: Supercuda] #1283008 08/10/12 04:18 PM 08/10/12 04:18 PM
Joined: Jan 2003 Posts: 7,978 Bethel Ct A AdamR OP master
AdamR OP master A Joined: Jan 2003 Posts: 7,978 Bethel Ct	Im looking to run either my stock 73 318 manifolds (for now) or swap to a set of 71-73 340 manifolds. Im trying to keep the car stock looking. Obviously magnum truck manifolds fit. Last edited by AdamR; 08/10/12 05:09 PM.

Re: EQ or magnum heads with Manifolds [Re: AdamR] #1283009 08/10/12 05:27 PM 08/10/12 05:27 PM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Well, I have test fit magnum exhaust manifolds on my 65 273 and my 87 318, had to grind the head a bit on the 87 where the rear most air injection port is and needed to plug the air injection ports, but they fit. I'd venture to say they'd fit the other way as long as you do not have exhaust manifolds with air injection ports. since those will not be covered. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: EQ or magnum heads with Manifolds [Re: Supercuda] #1283010 08/10/12 07:33 PM 08/10/12 07:33 PM
Joined: Jul 2003 Posts: 6,167 Maryland GO_Fish master
GO_Fish master Joined: Jul 2003 Posts: 6,167 Maryland	I've been running early 340 manifolds on stock magnum heads for a few thousand miles with no problems. The top and both sides of the LA ports are almost the same as the Magnum. Biggest difference is the port floor is raised significantly on the Magnum. When you mate the 2 together, you will see there is only about 1/8" of common sealing area at the floor of the port. This can lead to leaks at the bottom of the ports. If you have any trouble you can use Remflex exhaust gaskets, they will seal between the 2. Scott B. "I'm a self-made man... I started with nothing, and I still have most of it!" 68 360 rusty B'cuda 'vert (GO Fish)13.59@ 98.72 mph 69 340 GTS stock 14.18@ 95.60 mph 01 5.9L Ram 1500 Quad Cab 4x4 01 3.5L 300M 16.23@ 86.97 mph

Re: EQ or magnum heads with Manifolds [Re: GO_Fish] #1283011 08/10/12 08:04 PM 08/10/12 08:04 PM
Joined: Jan 2003 Posts: 7,978 Bethel Ct A AdamR OP master
AdamR OP master A Joined: Jan 2003 Posts: 7,978 Bethel Ct	Thanks Scott. I knew there was an issue with the port floor being lower, Wasnt sure if it caused a leak. 7330281-2443.jpg (51 downloads)

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