Vitos Ss Pistons With A Noss Head?

[tbd]

so i'm set on vitos SS pistons, now i was thinking since it was apart doing a noss head. is it necessary? or do i need it to increase compression TIA

[fixitrod]

An aftermarket head is always a good idea. I don't use one yet, but I eventually may. They cool better and they are adjustable. You don't need a new gasket everytime you and to pull the top off to look inside either. They are suppose to be less likely to leak with higher compression also.

 

It's not necessary and you can add a head at anytime.

[tbd]

ok, so if i did get the head what domes should i buy where i live is 1000ft above sea level, but i ride at or below that

[dlnoss]

I don't know much about the Vitos SS pistons but if they don't raise compression and your aren't ported or advancing your timing, 21cc domes are what I would recommend for pump gas below about 700' and 20cc for above 700'.

[.]

correct me if i'm wrong but the ss pistons do the same as raising the exhaust port which lowers compression?

[Oilsmoke]

It maybe be wrong if the piston rings are in the same place. Compression would remain the same. if the exhaust side of vito's SS are dished as to let some more exhaust gas escape. Hmmm and as I type this I find myself not Sure.

Hehehehe ANy thought's anybody.