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Old Oct 2, 2011 | 09:10 AM
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2000 full bolt ons, cammed but stock heads I keep seeing 243 heads for sell are they a big enough upgrade over stock ls1 heads? Or should I go with something eles?
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Old Oct 2, 2011 | 10:37 AM
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i prefer something else but theyre also a good option if you get them ported.
Last edited by ULTIMATEORANGESS; Oct 2, 2011 at 01:49 PM.
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Old Oct 2, 2011 | 11:33 AM
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15 more hp/tq for $400.$150 for a head swap kit.also look at 799 heads.what is you budget ?
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Old Oct 2, 2011 | 12:17 PM
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600ish What's on the ls7 engine?
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Old Oct 2, 2011 | 01:26 PM
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I got a set of 799 heads off ebay for 350 new. you should check it out
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Old Oct 2, 2011 | 01:56 PM
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Are 799 heads better ?
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Old Oct 2, 2011 | 07:40 PM
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799's and 243's are the same
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Old Oct 2, 2011 | 07:47 PM
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^ Yep... plus, the prices for those damn things is just plain ******* ridiculous... people think theyre gold. You might find 799s but the word it out on those as well.... also, 799s are the same port design i believe but they dont have the same oem springs and valves.. 243s have sodium valves I believe.. 799s dont but Im not 100% sure...
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Old Oct 2, 2011 | 07:56 PM
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Originally Posted by 19kiloz28
What's on the ls7 engine?
They won't fit a stock LS1 bore engine
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Old Oct 2, 2011 | 09:04 PM
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Originally Posted by ANTICOP RAM AIR
^ Yep... plus, the prices for those damn things is just plain ******* ridiculous... people think theyre gold. You might find 799s but the word it out on those as well.... also, 799s are the same port design i believe but they dont have the same oem springs and valves.. 243s have sodium valves I believe.. 799s dont but Im not 100% sure...
Z06's had sodium valves in the 243's beginning in 2002, they were rated at 405hp. The 2001 Z06 did not have sodium valves and had a slightly different cam as I recall, they were rated at 385hp. The lighter valves rev a little higher.
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