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View Full Version : Does MERC make a 3-6" taller riser for stock manifolds?



Lenny
04-23-2004, 11:01 AM
I am contemplating (actually am) raising my exhaust on the transom a few or more inches. I was going to buy a new set of aftermarket ones but in thinking about it, when this little 350 blows up I won't be putting another small bore into the boat so the SM or whatevers will be a waste of money. SO, is there such a thing from Merc?

RedDog
04-23-2004, 11:17 AM
You could use a riser extension - look at:

http://www.dougrussell.com/partscatalog/components/index.cfm?fuseaction=viewparts&colid=04&coldesc=5%2E7L%20EFI%20%20%20%20%20%20%20%20%20%20 %20%20%20%20%20%20%20%20%20%20GM%20350%20V%2D8%201 999&index=4856&block=140&BlockNumberList=30,40,10,160,200,190,180,80,70,280 ,140,290,320,110,90,220,310,0,230,300,210,260,270, 170,100,240,250,150,20,130,120,60,50

rchevelle71
04-23-2004, 11:18 AM
They make riser kits in both 3" and 6" versions,

They are blocks that fit between the stock manifold, and riser, you will need to buy a kit, or the blocks, longer studs, and new gaskets.

Here is an example

http://www.mercruiserparts.com/Show_Pictures3.asp?dnbr=824418965&ivar=images/CRUISER/824418.965/14.png&inbr=2336&bnbr=15&bdesc=EXHAUST+MANIFOLD+AND+EXHAUST+ELBOW

Go to Bams home page, mercruiser parts, search for your engine, exhaust, and look if it is availabe.

rchevelle71
04-23-2004, 11:19 AM
You could use a riser extension - look at:

http://www.dougrussell.com/partscatalog/components/index.cfm?fuseaction=viewparts&colid=04&coldesc=5%2E7L%20EFI%20%20%20%20%20%20%20%20%20%20 %20%20%20%20%20%20%20%20%20%20GM%20350%20V%2D8%201 999&index=4856&block=140&BlockNumberList=30,40,10,160,200,190,180,80,70,280 ,140,290,320,110,90,220,310,0,230,300,210,260,270, 170,100,240,250,150,20,130,120,60,50

Ya beat me to it!! ;)

Lenny
04-23-2004, 11:23 AM
Thanks, that is what I am after