mikeyb10supra Posted September 23, 2006 Share Posted September 23, 2006 Hi Guys Just received my cast iron manifold through the post for my single just looking at the inside it appears very rough and unfinished.....presumably this will need mirror polishing?? Whats the best way to go about this? Cheers Mikey Link to comment Share on other sites More sharing options...
colsoop Posted September 23, 2006 Share Posted September 23, 2006 I don't know why you would want to mirror polish the internals of your manifold. You could get a porting kit but i would be wary unless you know what you are doing. I suspect what you want to do is what John k did with his manifold. Check out his website for a guide: CLICK ME Link to comment Share on other sites More sharing options...
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