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-   -   Mercruiser 496 polished risers (https://www.offshoreonly.com/forums/do-yourself-boating-budget/229667-mercruiser-496-polished-risers.html)

scarab31 05-03-2010 08:40 PM

Mercruiser 496 polished risers
 
1 Attachment(s)
FYI. I have listed on ebay, item number: 180502126237, one pair of 496 Mercruiser exhaust risers that I had sandblasted and then polished.

low_psi 05-03-2010 11:20 PM

How much horsepower will thoses add? :lolhit:

scarab31 05-05-2010 03:57 PM


Originally Posted by low_psi (Post 3101457)
How much horsepower will thoses add? :lolhit:

Whatever you would like to hear!:ernaehrung004:

redstinger 05-05-2010 09:22 PM

where did you get that done and how much did it cost you if you don't mind me asking? I've got some as well.

scarab31 05-05-2010 10:03 PM


Originally Posted by redstinger (Post 3103154)
where did you get that done and how much did it cost you if you don't mind me asking? I've got some as well.

I'm putting the 496 manifolds and risers on my Scarab. In buying the manifolds I ended up with extra risers. A friend sandblasted 4 pair and I gave him $60. I polished them myself. 220, 400, 600, 1000, 1200 and finally 1500 followed by polishing them with stainless steel rosin on a bench grinder. So most of the work is my own labor. The small dent that shows up in the pic is small and was there in the powdercoat too. I have another set that I haven't polished but has a bigger dent from being dropped by mt buddies friend. He paid me $300 for that set but I still have them.

redstinger 05-11-2010 10:10 PM

I got mine back from the sandblaster today. I used a stainless steel polishing kit and buffed them with metal gloss compound, but they don't look anywhere near as good as yours.


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