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Mystery Heads?

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Old Oct 27, 2008 | 02:41 PM
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ChiTownHustler's Avatar
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Default Mystery Heads?
Have a set of LS aluminum heads in my shop right now that were on an engine I am rebuilding. Just wondering if they sound familiar to anyone. I will try to get pictures up later.
  • Aluminum centerbolt (casting number pad ground smooth)
  • CNC ported
  • 2.02 / 1.57 valves marked E 18
  • Bronze valve guides
  • Teflon valve seals
  • Dual springs with Ti retainers (look like Patriot gold)
  • Stamped BR or RB and the B is backward
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Old Oct 27, 2008 | 03:24 PM
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good old secret heads have them flow tested for 50$ and then try to see what they are
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Old Oct 27, 2008 | 03:59 PM
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I'd say a better way to test them is actually put them on an engine and see how well they do.
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Old Oct 27, 2008 | 04:03 PM
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whats the casting number on the heads? I.E. 243 241 853 706......



throw some pics up, that might help a lil bit
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Old Oct 27, 2008 | 04:20 PM
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Originally Posted by ChiTownHustler
(casting number pad ground smooth)
Sounds like some street racer had something he wanted to hide possibly.
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Old Oct 27, 2008 | 04:33 PM
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Originally Posted by whitew01ws6
whats the casting number on the heads? I.E. 243 241 853 706......



throw some pics up, that might help a lil bit
Casting number pad is ground smooth. I have seen this done before on CNC'ed cylinder heads. I am pretty sure they are 6.0 truck heads. I will try to get some pictures up later
Last edited by ChiTownHustler; Oct 27, 2008 at 09:11 PM.
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