[bacardiboy]

Am I going to have any problems when I have the heads bored/honed on my SS440? They come stock with cast iron sleeves and I just ordered .25 os yamaha pistons. Heads are still at stock diameter but im wondering how big can you go before the sleeve gets too thin? Im I going to be ok with what I bought? Thanks!

 

[indyryder500]

yes you will be fine. but you don't bore the heads.you bore the jugs. make sure you wait and take the new pistons in when you have it done.

 

[DoubleClutch]

You can go up to 40 over on a ss440 with no problem's and yes take the new pistons in the the cylinders to have them borded to piston!!

 

[bacardiboy]

Thanks Guys!!!!

 

[kccats]

You can likely go 1 or more mm! Just don't do the Wisco pistons.

 

[bacardiboy]

Thanks, I bought Yamaha pistons, read somewhere on the forum here that it was best to go with the original over wiseco. Is it because of the forged vs cast debate or?