sidewayz28

iTrader: (24)

Found a good local deal on some used LS3 heads. I know its hard to tell just from pictures, but do you guys believe a mill can clean this pitting up? Seller believes a .010" mill would work..

sidewayz28

iTrader: (24)

wrong section.... sorry

82cetuner

iTrader: (9)

take it to a local machine shop and let them tell you, thats the only way you are going to get a good answer, but with a picture and guys guessing your ganna get alot of differnt answers on here.

briancb1

It probably would clean up fine

01ssreda4

iTrader: (96)

Those pits look deeper then .010 to me. But its not on a sealing surface so why does it matter?

82cetuner

iTrader: (9)

looks like something let loose and bounced around the combustion chamber

NemeSS

iTrader: (127)

May take up to .030.

Jim85IROC

iTrader: (6)

I would think that those edges could create hot spots that could cause detonation.

01ssreda4

iTrader: (96)

Then you wouldn't have to mill the whole head. You could simply smooth away the material in the problem area bc as stated, its not on the sealing surface.

busta9876

iTrader: (3)

I've seen repaired heads that had damage like that on nitrous drag race engines and lots of circle track engines and never had an issue. Just milled them to get flat, and any low spots not really an issue. You could smooth them out a little bit, but don't get into the fire ring area by accident when working on them.

CAMSTER

iTrader: (10)

Nothing wrong with that head, aluminum is at least 3/8 thick in that area, just be sure not to mess with the sealing surface, you only need to take a sharp gasket scraper and take off protruding sharp edges, put it back in.