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Old 04-05-2008, 03:40 AM   #1
3.0trd
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Default flattening it all out

my cometic hg and arp studs are ready to go, but I'm not sure about the block (head already machined) I hear so many problems with bhg I'm scared of not machining the block... but its in the car and there is no way I can pull it, and no way to get it to a shop... I have a machined flat piece of steel and some 320 grit sandpaper that seems to do alright, but there is just the slightest edge around the 1 and 6 cylinders... does anyone have any suggestions as to what I can do to prepare for the mhg with the block in the car?
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Old 04-05-2008, 06:44 PM   #2
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Lap that flucker.

Keep doing what youre doing.
rotate the pistons so you aren't sanding on those.
Use a feeler gauge and a level.

This will take a week the way you are doing it.

Get a dremel and work it.

The block is hard you can't fluck it up if you're careful.

SAnd it till its nice and shiny. You'll be fine.

Gem dust would be better than sand paper.
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Old 04-05-2008, 11:14 PM   #3
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I agree that you need to lap it. I'd ditch the sand paper and get some diamond lapping compound. As you work on it make sure to measure the flatness of the deck as you go. You don't want to over work any given area.

You can pack the cylinders with Crisco to make sure what ever abrasive you use doesn't end up eating up the rings and cylinder walls. When you're done you just scoop it out.
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Old 04-06-2008, 01:31 AM   #4
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Nice tip with the crisco.

Gold nuggets of wisdom this chap is getting.

I think i'm tingling all over.

NOT.
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Old 04-06-2008, 05:01 AM   #5
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Quote:
Originally Posted by supramacist View Post
I think i'm tingling all over.
That's probably from the pepper spray... I'm sorry the blind date didn't go so well. I hear bathing in baking soda and cold water helps lessen the burning and swelling.
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