JimboGT01

Im just wondering, When you take the block to the machine shop to have them bore it .020 what esle do they do? Like would they normally clean/machine the decks where the heads sit, maybe run it through a cleaning machine? and are boring and honing two different things?
jimbo

Triisomy21

I'm giving you a link to an engine shop. At the top of this particular page are a bunch of pictures of the machines and what they do. Below that is a little bit of info on what it takes to prep a block for assembly. Although it doesn't exactly tell you what each process does, I'm sure if you emailed them or googled a few terms you'd find what you're looking for. It's cool sh*t!!
http://www.ahmperformance.com/theengineshop.html

99 GT vert

im not sure what all they do at the shop when they bore it out but there is a diff between borering and honing boreing is done a mill or lathe with a boreing bar and honing is done whith a hone on a honing machine and will not take as much off the block im not real up on honing but i have bored before ( im am going to school to become a tool and die maker and my dad owns a tool shop)

JimboGT01

thats good to know.

Triisomy21

man i couldn't understand a single thing you just said.

97targa

They will first Hot Tank the block which dissolves the grime and cleans it up. Then they Magnaflux the blocks which is used to check for cracks etc. They will Deck the block next which strightens out the head surface for any minor imperfections(there are specs on limits to this with Mod blocks) Then they will bore it out to your specs this being .020 They hone the cylinders after the bore. This will help the rings seat properly. You can tell a freshly honed block because it will have cross hatches on the walls (45 degree scores crossing each other) You will get new freeze plugs and then it gets crated up with a tag.. Hope this helps