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fredmeister fredmeister is offline
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Join Date: Oct 2002
Location: Baltimore, MD, USA
Posts: 2,235
Originally Posted by Kraftday View Post
Its important to have at least the 3 slugs on that side resurfaced and verified the same height. If the ni-resist rings and grooves are added, then resurfaced with machined precision, you shouldn't have to do any lapping.

Just tell your machinist these parts are going on the next Mars Rover so they have to be clean and tight!

This latest engine project had some divots and uneven surfaces.. which means you have to take off more material to get min clean up.

Here is some eye candy complements of PMS:

Can you show an example of a mild case that needs work (before its machined) to give us an idea of whats not acceptable and when clean up is going to be required?
It would be great to have a benchmark to know when one can skip this and save some time and money or when its needed for a successful build.

Not being in the biz and seen alot of damaged heads before its hard to make the call if you're a guy like me doing this himself.

Thanks for your experience,
1979 930 Turbo....3.4L, 7.5to1 comp, SC cams, B&B intercooler, Snow Perf water/meth injection, Rarlyl8 headers, Garret GTX turbo, 36mm ported intakes, Innovate Auxbox/LM-1, custom Manually Adjustable wastegate housing (0.8-1.1bar),--running 0.7bar max
---"When you're racing it's life! Anything else either before or after, is just waiting"

Last edited by fredmeister; 05-02-2013 at 08:36 AM..
Old 05-02-2013, 08:34 AM
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