440 reliabily?

[Reaster00]

How much does a 440 kit hurt the engine reliabily?

[Ruby Soho]

it can, if not built properly

if your going to do it, do it right. go wth hd studs, better cam chain, good gaskets, the whole 9 yards

[gregrob]

FWIW, Colby says head studs are not needed if it's setup properly.

What you do need to do is torque the stock studs a little tighter than the manual calls for.

I would call him and discuss.

[DOHC]

I havnt had one problem with mine yet :macho

[Wheelie]

Mine isn't a typical 440, but it has been as reliable as a stocker so far.

Almost a year without any problems--still running the stock head studs as well. As stated before, I overtorqued them slightly, no problems to date. I also upgraded to a Hyabusa battery as well, it helps to kick over the 11.3:1 compression w/o a compression release.

Take your time and build it right, and a well built 440 will treat you right.