Good 360 Aluminum Head

Bare W2 heads are available in open chamber. about the same price as bare eddies but you need specific headers/roller rockers etc.

Just an option.

B. Cylinder Heads, Cast Iron, W2 Race
Features flat-machined rocker pads that require the use of T&D Race Rocker
Arms and long valves. Heads must be oiled through the tappets and hollow
pushrods. Older style rocker stands and rocker systems do not work with these
heads.
1
P5007708AB Cylinder Head, Cast Iron, Race, 2.02" Intake, 1.60" Exhaust,
48° Tappet, 47cc Chamber, W2
1
P5007445AB Cylinder Head, Cast Iron, Race, 2.02" Intake, 1.60" Exhaust,
48° Tappet, 65 cc Chamber, W2
1
Cylinder Head, Cast Iron, Race, 2.02" Intake, 1.60" Exhaust,
P5249769 59° Tappet, 65cc Chamber, W2

Copied from current MP catalog.....only 65 cc heads available and the new heads take an expensive T& D Race Rocker set up.....

Header selection is very limited...for the street TTI....hedman and hooker make still make 1 7/8 race headers with one tube going out thru the inner fender...