Help Identifying 701 Domes

[Wizards Powersports]

Who can ID these mystery domes? They're similar to ADA, but not the same...

 

[Big Kahuna]

Could be an older Greater/Wamilton/UMI dome. Think they had the thiner lip at the combustion area.

 

[Dartman]

i think those are the old TWIST head domes

 

[TheBuzzard]

i think those are the old TWIST head domes

msd twist domes had cooling fins

 

[jdmforlife]

msd twist domes had cooling fins

X2

 

[vomitspot]

cast westcoast shell
either oem yamaha race head or westcoast
both made by westcoast in early 90s

 

[TheBuzzard]

cast westcoast shell
either oem yamaha race head or westcoast
both made by westcoast in early 90s

westcoast has fins also

 

[thundercat]

might be r-d billet head

 

[Big Kahuna]

Not Greater or ProTec. they have fins or stepped dome top.

 

[Big Kahuna]

R&D has a flat area just before the section for the plug shoulder.

 

[Wizards Powersports]

I've already looked up pics of every brand I could think of and haven't found a match.

ADA No
Riva No
Westcoast No
Blowsion No
Pro-Tec No
R&D No
Greater No
MSD No
TBM No
Pro-Design ?
Ocean Pro ?
Speedwerx ?

 

[DAG]

I'm thinking Group K, but cant find a photo to confirm.