evo case boring
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
Anytime you bore out an Evo case to accept the big bore cylinders, you can run into problems as there isn't a lot of meat left. The problem is even worse with the '13/16th" cylinders. Aftermarket cases aren't that expensive and they have extra meat in all the right places.
Road Warrior
Joined: Oct 2009
Posts: 1,251
Likes: 1
Anytime you bore out an Evo case to accept the big bore cylinders, you can run into problems as there isn't a lot of meat left. The problem is even worse with the '13/16th" cylinders. Aftermarket cases aren't that expensive and they have extra meat in all the right places.
couldnt agree more, i recently purchased a set of delkron cases for 700 off ebay....... much better quality than factory hd stuff.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
I wouldn't do it! Later evo cases have more meat on them that yours. You can stroke your motor to 89", which I did to my 1990, otherwise fit later cases as suggested. When I started looking at doing that for my original motor I decided it was not much more cost and less trouble to fit a fresh motor. I am running an S&S 107 now, so be warned - messing with motors can get expensive!
Advanced
Joined: Jan 2010
Posts: 54
Likes: 0
From: Laconia, NH
And what would be the cost of boring the cases???
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