Best 800 head for above 8,000 ft

[SDSX8]

For all of those who have used different high compression heads, which do you think is best. (brand wise or milled stock?)

14:1 or 14.6:1? ( i was thinking 14.6:1 since i am always hi alt, and race fuel isnt hard to get)

mill the stock head or buy aftermarket complete? (are the aftermarket combustion chamber designs really better? if so, any real-world evidence?)

has anyone noticed that a 14.6:1 vs. another 14.6:1 runs better?


Thanks guys I appreciate your input.

also what jetting changes are you making?

 

[Original Tetonice]

Trigstad, RKT, SLP there all pretty close.

 

[idareyou]

RKT. It works well.

 

[triple7]

Engine Tech 14:1 has worked well. Very nice machine work. Seems to out perform stock heads that have been cut for all they are worth and reshaped.

 

[SDSX8]

i guess I should add this is for a 09 800r 146.


Thanks for the replys, it seems that they are all comparable. Trying to decide if its worth it to buy a complete head or just mill the stocker

 

[MOSKIDOO]

Cudney

CUDNEY 14:1 here........................you wont believe what a head will doo after 7000ft................awesome!!!!!!!