I know this doesn't belong here but I'm looking for help to do a buds head swap on his 800 MXZX.He bought an HO head off EBay but doesn't have any tuning info for an HO engine vs the ordinary stock 800 as far as jetting or clutch components that are different.He's had the head for a couple of years and want's to take advantage of it so he can catch me 
but I'll be doing the work for him so I need all the info I can get.
but I'll be doing the work for him so I need all the info I can get.
mopar1rules
Active member
to be honest w/you, i think the heads are the same. it was the cylinder porting that differentiated the "ho" from the "non-ho". do you have the original "non-ho" head there, that you can measure up to compare it to the "ho" head and see if they are the same?
The stock head is still on the engine and we hesitate to take it off until we find out what all we need to do to make this an HO engine.