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243 heads for $500

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Old 04-17-2011, 08:54 AM
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Default 243 heads for $500

i guy just emailed me back and sayed he could get me new 243 heads for 500
he dident telll me if they had valves or anything. is that a good price. i was thinking of getting tfc 215. but for this price i heard that 243 are a good head as well. prob not as good as tfc 215s. thank for help.
Old 04-17-2011, 11:51 AM
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I picked up my set of 799s for 420ish shipped with a full set of rocker arms from See5 on here. They were just about brand new too!

500 seems like the going rate for used ZO6 243s.
Old 04-17-2011, 11:59 AM
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Originally Posted by spiro27
i guy just emailed me back and sayed he could get me new 243 heads for 500
he dident telll me if they had valves or anything. is that a good price. i was thinking of getting tfc 215. but for this price i heard that 243 are a good head as well. prob not as good as tfc 215s. thank for help.
Send your 243's to A.I. and they'll be every bit as good as a TFS 215, or any other head for that matter.
Old 04-17-2011, 12:22 PM
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what shop is ai do you have a link.
Old 04-17-2011, 01:04 PM
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advanced induction, suppose to be some of the best porters out there http://www.advancedinduction.com/
Old 04-17-2011, 01:25 PM
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I bought mine for 500, then sent them to AI and now I have some *** kickin heads!
Old 04-17-2011, 07:47 PM
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how much it cost to get them done.
Old 04-17-2011, 10:22 PM
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I have the same question. What's the average cost?
Old 04-17-2011, 10:51 PM
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worth it.
Old 04-18-2011, 12:53 AM
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The only difference between the 243 heads and the 317 heads is the combustion chamber volume correct?

243 = 64.45cc's
317 = 71.06cc's

Is that correct?
Old 04-18-2011, 09:15 AM
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Originally Posted by 99TransAm666
I have the same question. What's the average cost?
Somewhere close to $1000 from what I hear. But when you think of it, $500 for the heads and $1K to get them touched up isnt too bad at all. Some guys have gained over 50 rwhp from these heads after AI's P+P

Last edited by Rare96LT1Formula; 04-18-2011 at 12:26 PM.
Old 04-18-2011, 04:40 PM
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Yep thats about what it cost and I picked up 90hp with with a avg. cam and those heads from those guys!
Old 04-18-2011, 05:31 PM
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anyone have flow numners of the ai ported heads?
Old 04-18-2011, 06:38 PM
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Originally Posted by ta-stanger
Yep thats about what it cost and I picked up 90hp with with a avg. cam and those heads from those guys!
Thats awesome man, makes me excited for when I finally get a bonafide H/C package.

Out of curiosity, what intake are you running? I've been scratching my head forever about which intake to go with.
Old 04-21-2011, 07:21 AM
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i want to go with a fast intake still looking.
Old 04-21-2011, 09:42 AM
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LS6 intake. Someday I may go with a ported fast 90 But for now if I wanna go faster I will just up my shot
Old 04-21-2011, 11:05 AM
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i was talking to a guy about the 243 for 500. he never got back to me. does anybody know whare i can get them for around that price 400 500. a link would be cool thanks for help.
Old 04-21-2011, 11:45 AM
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Check classifieds here and on Corvette Forums in C5 section.
Old 04-21-2011, 12:46 PM
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I bought a 2008 5.3 for 400 complete and had the 243s on it, i removed them for a set of 40$ 317s and the 243s will go on my 6.0, pretty sweet deal, 28K miles on the motor.
Old 04-21-2011, 09:27 PM
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Originally Posted by kdavis
anyone have flow numners of the ai ported heads?
Click on the Advanced Inductions link on the right side of this thread; may
have to scroll up or down to find it and then navigate your way through
their site and it shows before and after flow #'s as well as percentage of
improvement. What you'll find is that many companies can claim more peak
CFM @ .550 and .600 lift but AI has some of the best #'s in the low-lift
.200-.500 range which means good port speed , runner efficiency, and more
torque through the power band.



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