1.6 Rocker Arm Performance Gains over 1.5 Rocker Arms

abdywgn said

would you have enough valve clearance with the pistons you have in the engine?

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Rocker arms with more ratio change overall max lift. They have a very small impact on rate of lift and duration. Therefore valve to piston contact is of almost no concern when switching between 1.5 and 1.6 ratio.