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Ace Billet Head for Continental GT 535 or UCE: Thread moved to vendors.

Ace

Well travelled
Location
E TN, USA
Introducing a new billet head concept for UCE Royal Enfield 500/535 singles.

Photos attached.
 

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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.

219
 
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.

View attachment 219

That is rear wheel horsepower on a dyno, with all our available GT535 mods.
Stock rear wheel hp is around 19-20.
Almost doubling the stock rear wheel hp.
 
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