Join Date: Jun 2010
Location: Atlantic CANADA
not a clue as to how much they hacked off.........but it is a considerable amount.
Very disappointed in the casting quality and factory finish in the Gen 4 head........the Gen 1 head was far superior in finish quality.
Did a considerable amount of cleanup ,blending, and finish work to the Gen 4 head.
I was going to do a straight swap of heads to see if there was real world gains to be noticed from the Gen 1 to Gen 4 head with the same cams and degreeing, dyno numbers, blah blah blah.....but end of the day gains in 1/4 mile timing.
2004 ZX10R-few mods here and there......
and even made more Evil by Woolich.