Central features are:
Fully billet manufacture, not a casting.
Steeper valve angles, 20 degrees each(40 degree included), down from 27.5 degrees each.
New higher flow CNC ports
Big valves
Re-designed combustion chamber shape, more compact and efficient combustion
Higher compression, approximately 9.8:1
Provision for dual spark plugs
Shaft type roller rockers with high ratio for high lift with stock cams. Max available lift capacity of .600"(15mm) optional.
Ace Beehive valve springs
Titanium retainers
Custom bronze valve guides
34mm inlet and exhaust port diameter which will bolt up with stock intake and exhaust tracts.
Designed to be an easy replacement of the stock head, with all performance enhancements included in the top end.
Requires custom pushrods
Will require a Power Commander or other fueling control system, and free flow inlet/exhaust upgrade. Can also take a carby with the same stud spacing as a Bullet.
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