yes, place 4 pieces 90 degrees from each other, measure each.

 

Just mail me your bore mic. Will be funner

 

I wish you would stop calling them bores
your confusing everyone

JOURNALS

 

I'm looking for an 83mm bore mic like a foo...

lol

 

ill find you one, I hardly trust you with a hammer.

Precision measuring equipment?

 

Everything is a hammer if used correctly.

 

I love when you prove my points for me


ive always been impressed with mitutoyo
Mitutoyo Digimatic Bore Micrometer 468 988 IP65 Holtest 1 2 " 25 4 50 8mm | eBay

 

That is a really ****** expensive hammer

 

Really though, for the resolution you want, its not going to be a cheap tool. And do you have the machinists feel to nail 1/10 thou with a thumbwheel?

 

The spec is .0020 out of round.

That one is way more accurate than that.

 

Just crank the dial till it reads what you want it to, spin it a bit if necessary. That's what the carbide faces are for.

 

12 372 9 SPI Inside Micrometer 2 12" | eBay

http://www.ebay.com/itm/12-370-3-SPI...QAAOSwA3tXoPvt

12 389 3 SPI Inside Micrometers 1 2" | eBay

 

FTFY

 

Harbor Freight: No matter what you buy, within a year it's a *****.

--Ian

 

They will distort if you torque them to a value that results in a higher clamping force than the stock bolts torqued to stock spec. If you want to run them, just have the machine shop do a line bore/line hone and be done. 200 is a fair price, I paid either 200 or 250 for the same on mine.

 

I'm sure we could get any number of people here on either side for the main line bore. And although I have increased the budget for this build, there still is one, and i need to cut corners somewhere.

 

It's physics. Things bend when you apply a load. Higher loading will cause more bending. If this seems debatable, I'm out!

 

Well are they supposed to be torqued to a higher spec? I have not read the instructions.

 

I don't have the specs in front of me either. I would imagine they are stronger than the stock bolts, and thus will require a higher torque. Also ARP typically uses a low friction lubricant, and fine pitch threads to increase clamping force. That's 3 things that all result in higher clamping force.

 

60 ft-lbs with ARP mains and lube vs. 40-43 for stock. Even if it's the same pitch, it's still quite a bit more preload.