Summit 670 to 650 manifold swap

[Joe DeCarolis]

I have a NG Summit 650 that I want to convert to LP by swapping manifolds. I have a donor 670 LP manifold that has the sear burner valve in between the two main center burners. The 650 does not have the sear burner. All the other valves are in exactly the same position between the 2 manifolds. What do you guys think if I removed that sear burner valve, plugged the hole and used it in the 650?

 

[LMichaels]

I have a NG Summit 650 that I want to convert to LP by swapping manifolds. I have a donor 670 LP manifold that has the sear burner valve in between the two main center burners. The 650 does not have the sear burner. All the other valves are in exactly the same position between the 2 manifolds. What do you guys think if I removed that sear burner valve, plugged the hole and used it in the 650?

As long as spacing is the same, go for it

 

[BPratt]

I have a NG Summit 650 that I want to convert to LP by swapping manifolds. I have a donor 670 LP manifold that has the sear burner valve in between the two main center burners. The 650 does not have the sear burner. All the other valves are in exactly the same position between the 2 manifolds. What do you guys think if I removed that sear burner valve, plugged the hole and used it in the 650?

The valves are not threaded in on those summits. You would have to plug a hole an unthreaded oval shaped hole on both sides of the manifold.

You might be better off swapping the valves from the propane summit to yours.

 

[BPratt]

The valves are not threaded in on those summits. You would have to plug a hole an unthreaded oval shaped hole on both sides of the manifold.

You might be better off swapping the valves from the propane summit to yours.

Here is a photo of an S-670 propane manifold assembly with an infrared burner valve at the end. The valves are 2 pieces - one control and one gas nozzle. The manifold tube is sandwiched between the valves using gaskets to seal the holes. The manifold tube is the same diameter for natural gas or propane. The valves mount the same way and are dimensionally the same. The valves internals may be different - Weber does not provide a conversion scheme - so no good way to know.

You may need to zoom in on the picture to see the valves better

 

[LMichaels]

My understanding is the only difference between the 650 and 670 is the sear burner. So, a simple valve swap should work as described as well. I've never laid eyes on one of these things so, I'm simply going off the "theoretical" not the "practical"

 

[Cody Bratton]

if you have both manifolds I would switch the valves over. But you could also just cut the stem off the extra valve and leave it in the closed position.