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09-16-2012, 04:05 AM #1
Recommended machine shop for head and block work
So I'm looking at having my head and block to be resurfaced for my build this winter and I have been reading on RA (roughness average) and that not all machine shops have the capibilites to measure RA let alone resurfce to a certain spec. Here in montana I really dont trust many of our shops out here especially for how much money I am dumping in. So thought I would just shoot out a thread with opinions of awesome machine shops that people know of!
09-17-2012, 12:21 PM #2
Min RA of 30 which Im sure you are already aware. If the machine shop that you choose cant measure it then I would ofcourse find one that can. I would hate to see you have to do a tear down and redue something that has already been done but not to the correct specs.84 7M Powered Supra (Sandy)
663whp/603wtq @ 26PSI on 101 Octane.
09-17-2012, 10:21 PM #3
I assume you're going with MHG?
Here's my method for finding a good shop:
1. Locate a few reputable shops (get references).
2. First question for the owner: "Can you resurface the deck of a straight six block with the rear timing cover attached?"
3. If the answer is yes, the next question: "Can you resurface to 30RA or better?" Don't even mention the words roughness average and watch the guy closely. If he hesitates or gives you a stupid look, thank him for his time and take off for the next shop. He should be able to answer you right away with confidence if he knows what he's talking about (believe me, plenty don't have a clue what RA stands for)
4. If you feel confident in his answer, ask him if he has a recently done block or head with a 30RA or better. If he has one, run your fingernail across the surface. You should not be able to snag your nail at all on it at all.
If you're paying top dollar for machine work, make sure you get top quality work and a good shop. 30RA in NYC cost me over $150 by itself.-Rocky W
87 Cressy DD
84 P-Type in the O.R.
09-18-2012, 04:38 PM #4
Cool thanks for the advice man, I will try some of your hints and tips tomorrow! Yeah Im going to run a mhg and dont want the probably 200$ i spend on the gasket to be a waste because my head isnt flat or smooth ya know :/ thanks for the advice guys!
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