Gil Marine or Imco exhaust
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Ok I went and picked them up, but am a little confused now. The right side manifold does not say Mercruiser and the casting plugs all say Gil. The left side has Mercruiser in the side of it and also has the casting plugs that say Gil. Whats the deal here? Are these the Gil produced HP500 manifolds?
Also the risers are about 15" long which I believe will be too long. So how do you determine what the right riser length is for your boat?
Also the risers are about 15" long which I believe will be too long. So how do you determine what the right riser length is for your boat?
Last edited by quadracr; 04-04-2008 at 11:57 PM.
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if the risers are 15" long, they may have been for a TRS setup. Or dry all the wayto the tip. With the riser end going thru a boot at the transome.They can be shortened by a competent welding shop or I understand Gil will do it for you also.
I shortened my own and added a downward turn to match my tips.
I shortened my own and added a downward turn to match my tips.
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Most manufacturers will do whatever you want with the pipes. Some come up into an elbow and mix water in, then go thru rubber to transom tips. Some go all the way out. What complicates things when looking at used exhaust is that different setups use different tails. For example, on the Gil you can get Bravo tails and you can get TRS tails. Since the TRS is longer, their pipes are too.
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Ok what are tails and what are the difference between bravo and TRS tails.
It seems I really opened a can of worms here and I apologize for the 20 questions, but before I spend money I need to educate myself.
All I really want to do is get some good used manifolds with some stainless risers to angle cut short tips.
Am I making this more complicated than I need to?
It seems I really opened a can of worms here and I apologize for the 20 questions, but before I spend money I need to educate myself.
All I really want to do is get some good used manifolds with some stainless risers to angle cut short tips.
Am I making this more complicated than I need to?
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Here is what I bought, TRS risers. Thesecond pics is what I changed them to, Bravo risers. The tails would be any pipes you need for getting the exhaust to the transome tips, or thru the transome, third pic.