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Thread: L33 head camshaft specifications
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01-10-2008, 10:00 PM #1
- Join Date
- Nov 2007
- Location
- California
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- 7
blue- 71 Datsun 240Z
L33 head camshaft specifications
Does anyone here have specifications on the L33 heads and camshaft? Where does GM pickup 310hp from the 285 hp 5.3?
Thanks,
g
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01-12-2008, 05:29 AM #2
The HP comes from the compression ratio, it should be higher on the HO and like dozerdan said the heads are different. I was thinking of something else. I think I have the specs somewhere let me see and I'll get back with you.
Last edited by Nitrous; 01-18-2008 at 07:55 AM.
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01-15-2008, 04:37 PM #3
- Join Date
- Jun 2007
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- THE 405
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Black- 2007 Silverado
the L33 has different heads which gives it higher compression, which is where the extra power comes from, and it has an aluminum block
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01-18-2008, 07:54 AM #4
The head numbers are 12564825 which are the LS2 and Z06 heads and the camshaft is 12583623.
Hope this helps.
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