Quote:
Originally Posted by TT Oversteer
Like the case finish. What brand of valves are you using? Can you give us more info on the case mods for crank oiling?
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The case is tumbled with medium steel peaces giving it a dark, rough surface (sort of like sand casting) then it is washed in a steam cabinet with mild caustic soda (sort of like Easy Off). If you try Easy Off oven cleaner be careful to apply it evenly and be ready to wash it off when it reaches the color you desire.
The valves are Swiss made InterValve prepped by polishing the stems.
Oil mod simply involves drilling the main bearing feed hole ( 7/32" or 5.5mm) from saddle to the main oil galley to promote increased flow to the #4 main bearing. The grooved and drilled (7/32) # 4 main bearing then transfers the increased oil flow to the #2 and #5 rods bearings through an additional hole in the crank.
