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Slanted Opinion
 Post subject: Angled Head Shaving?
PostPosted: Sun Nov 13, 2005 11:35 am 
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Turbo EFI
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Found this on an Aussie Mopar site discussing slant six head milling
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once we built up a slant and took 200"of the push rod side and nothing off the manifold side(wedge shaped)to put the combustion chambers at a better angle:smoki to the cylinders-went like stink!!
Any thoughts on this? I've heard that detonation control on a higher compression slant is difficult to do, in part because of open chamber design.

-Mac
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Dart270
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PostPosted: Mon Nov 14, 2005 7:04 am 
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This a very old trick. I haven't seen back-to-back comparisons of HP, but it makes some sense to do it.

I have two heads with angle mills - 0.080"/0.180" (intake/plug side) and 0.100"/0.200". They have worked well in street/strip motors for many years.

Meril Bruner has used the 0/0.200" mill and he gave me the idea back in 1991.

Lou

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Greg Ondayko
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PostPosted: Mon Nov 14, 2005 8:38 am 
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When you do this - do you have to also remachine the head bolt holes and flat bosses?

I would imagine so,


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Dart270
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PostPosted: Mon Nov 14, 2005 11:05 am 
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Most people do. I did not on mine since I only had a 0.100" offset. No head gasket problems in 10 years and many head swaps, UNTIL this summer. Not sure why it happened and will pull the head to investigate. Not a head bolt issue, though.

Lou

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Greg Ondayko
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PostPosted: Thu Nov 17, 2005 4:03 pm 
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(intake/plug side) and 0.100"/0.200". They have worked well in street/strip motors for many years.


Lou
Lou, When you do the .100" / .200" Angle mill, Does that mean that you do .100" off as a regular head cut, then another .100 at the angle after the first cut?


Greg

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Dart270
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PostPosted: Thu Nov 17, 2005 7:11 pm 
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Couldn't tell ya. I just told them what I wanted and they did it.

Lou

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