[chiefshocker]

Where your jug meets the bottom end or case does it match up perfectly or do you have little ledges? I know the spacer I use does not line up perfectly.. My ESR kit is just a bolt on so i know they didn't port the case... Is it worth the hassle..? What will it do for the engine?
F

 

[elbine69]

What do you mean by ledges? And yes case porting is worth it. With the 330 bolt on kit you only get 1 bore or so out of the cylinder before it has to be resleeved. With the cases ported you end up with a thicker sleeve and can be bored more times before resleeving.

 

[chiefshocker]

I trimmed my spacer so it's better, no "ledges". Maybe next tear down i'll have them machined. I just put it all back togeter and in the process of breaking in the new piston rings..