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.

 

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.

 

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.

 

what shop is ai do you have a link.

 

advanced induction, suppose to be some of the best porters out there http://www.advancedinduction.com/

 

I bought mine for 500, then sent them to AI and now I have some *** kickin heads!

 

how much it cost to get them done.

 

I have the same question. What's the average cost?

 

worth it.

 

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?

 

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

 

Yep thats about what it cost and I picked up 90hp with with a avg. cam and those heads from those guys!

 

anyone have flow numners of the ai ported heads?

 

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.

 

i want to go with a fast intake still looking.

 

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

 

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.

 

Check classifieds here and on Corvette Forums in C5 section.

 

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.

 

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.