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Old 08-22-2011 | 09:17 PM
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Originally Posted by wexrocks
the way my boat is set up, the power steering is right in the way of a typical thru-hull setup, and was thinking of exiting a little higher... I'm wondering if these tails could be cut shorter if necessary, to accomodate the height of the exit point (so the hose doesn't have to run horizontal or turn upward at all and pool/trap water) just curious, just in case it is an issue, won't know until I have them here and have the motor back in, just thinking ahead...
Do you have riser height extensions/blocks on your current set up ? If so, you can probably get taller risers...I know you can with the BBC systems,
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Old 08-22-2011 | 09:20 PM
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Yup, they make th em in a 3" taller version.
http://www.eddiemarine.com/store/car...l&p=13073&c=63

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Old 08-22-2011 | 09:28 PM
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The Revolution Marine manifold has an anti reversion lip built into the riser as you can see in the pic.....excellent value at about $950 a set....I have them on mine.....picked up the torque right off the bottom....a little more up top and huge weight savings.
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Old 08-22-2011 | 09:31 PM
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Originally Posted by pullmytrigger
The Revolution Marine manifold has an anti reversion lip built into the riser as you can see in the pic.....excellent value at about $950 a set....I have them on mine.....picked up the torque right off the bottom....a little more up top and huge weight savings.
What do you have for cams ?
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Old 08-24-2011 | 08:25 PM
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Originally Posted by SB
What do you have for cams ?
I know they're .480 inch lift cams.....I bought the engines off a guy and I had my guy freshen them up....we couldnt find the number that was stamped on the cams in any manufactures info but my engine builder said that he measured them at 480 lift
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Old 08-24-2011 | 08:45 PM
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Just wondering what they run fine with duration, lsa, and etc with. Haven't run across too many with this exhaust, been keeping my eye/ears open though. Was hoping you had more cam info, oh well.

I do know, the GLM's mentioned have to have tubes welded to the exhaust outlet (approx 10" or so) when used with the CompCams XMHR270's and larger. Many guys running the XM270HR's and various exhausts.
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Old 08-24-2011 | 08:48 PM
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Originally Posted by 1BIGJIM
If you cut them shorter you will have to find someone to weld the dams back in.
I agree. Not worth the $$$, effort, nor the possibility of it not being modified correctly. Not as easy as you'd think until you really study the design/construction.
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Old 08-25-2011 | 02:12 AM
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I believe you can get wedge plates to mount between the riser & manifold, my eliminator had them to move the exhaust tails up or down as needed just need an extra set of riser gaskets
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