Westcoast Head What size domes are these ?

Can some one tell me what size domes these are on my westcoast head that was on my stock 94 B1 701 61x ?

On the domes it says YEP 7030

And what compression would I get with this head with these domes on a stock 701 ?
The motor is all stock.
and I am wondering if I should use it on my replacement motor that is also stock.

Thanks
 

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SUPERTUNE

Race Gas Rules
Location
Clearwater Fl.
This head was made to use with a stock gasket, a stock gasket displacement is about 6.2cc's, then add the 30cc for the domes, so it's really close to a o-ringed 36cc head. Plenty of compression increase for a unported blaster!
Stock head is 34cc's + 6.2cc for the gasket...
 
Last edited:
Location
NJ
Blasterguy, I have some like new 28cc domes if you want a slight bump up in compression from those.

Trade you straight up if you like?
 

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