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Mystery Heads?

Generation III Internal Engine 1997-2006 LS1 | LS6

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Mystery Heads?

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Old

Oct 27, 2008 | 02:41 PM

#1

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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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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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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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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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Oct 27, 2008 | 04:20 PM

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Quote:

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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Oct 27, 2008 | 04:33 PM

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Quote:

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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