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Originally Posted by svx_commuter
So you are getting new intake cam shafts with a higher lift. Why not the exhaust also?
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John the exhaust is 8mm now. They kept the inlet at 7mm to make the engine completely non interference, As the inlet valves are bigger than the exhaust. If the belt broke, the edge of the inlet valve could hit the piston.
1 mm more on the inlet will bring the both to 8mm.
Of course the other reasion is, its cheaper to do one than two.
Harvey.
