Does a Crane"741" Cam With Silent Choice Cause Water Reversion?
Is anybody using silent choice with this cam?
Do you have to go to Switchable/Mufflers instead?

I have Lightning headers and silent choice and NO reversion.
I do run my exhaust almost dry though.

I still have the Gil setup and I'm concerned about suck'n in water.

I also run 741 straight up. Straight headers with dumps before transom. (Almost dry) I run older Gaffrig switchable mufflers.

Silent Choice, Gil/Merc exhaust, Crane xxx741 cam. Dry as a bone.

If you change your tails to a dry setup with the gills, you'd be ok. I wouldn't want to try it with a wet riser though. I know that I can get mine to revert with Lightning headers. And they dump further back than the gills did.

Dennis/Strikin',

I agree with Cord, convert your "wet" system to a "dry" system. Have your tailpipes extended ALL the way back through your transom and at least 6 inches out and have the water dump at the very end of the tailpipe. That way you will have a nice, one piece stainless steel tailpipe without all the wet system rubber hose stuff on it as it will look much nicer, less stuff to take apart without the rubber hose and hose clamps, etc, etc and it give it a much cleaner appearance to your engines. Actually, there are a few different ways you can dump the water out and still make it a "dry" system. I know a guy who can weld some extensions on your tailpipes. He does (or at least he did) all of GIL's tailpipe work for several years and he is very good and his pricing is extremely reasonable. His name is Bob from Lake Precision Welding in Ohio. He has done work for me and my cousin and it turned out very well. Bob's number is 440-639-1444.

I have the 741 and stock gil exaust, and have never had reversion.

I have had Bob that Kaama mentioned above do work on a set of tailpipes I had, he does awesome work reasonable.....he can also build you tubular risers any style or length.....Fred

There are other factors to look at. What is the size of the motor? Aftermarket or ported heads? In a 454, that cam is almost guaranteed to revert. With a set of wild heads on a 502 it will revert with the silent choise risers.