Best ported stock casting 243 head
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Turd Gen Guy
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Joined: Dec 2008
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From: andalusia, alabama
Best ported stock casting 243 head I currently have a set of t.e.a. Stage 3 317's on my car and the 2.08 intake valve is keeping me from going larger on a camshaft. Question is... What would be the best head?? Stage 2.5 or stage 3... And let who port them..tea, prc, livernois, etc... Ive seen flow numbers and id like to make 500rwhp with a 23x/24x cam and my fast 102 on my ls2. Thanks
500rwhp is few and far between on an LS1 or LS2 bottom end. It's been done, but it's anything but common.
460-480rwhp with a very usable TQ curve is a more realistic goal. Drinking the internet koolaid and hoping for 500rwhp out of a stock bottom end engine is probably going to get you let down in the long run, unless you've got an LS3 or LS7 of course.
That being said, A.I. has one of the best 243 porting programs out there. T.E.A. is another, but A.I. has better pricing.
460-480rwhp with a very usable TQ curve is a more realistic goal. Drinking the internet koolaid and hoping for 500rwhp out of a stock bottom end engine is probably going to get you let down in the long run, unless you've got an LS3 or LS7 of course.
That being said, A.I. has one of the best 243 porting programs out there. T.E.A. is another, but A.I. has better pricing.
Thread Starter
Turd Gen Guy
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From: andalusia, alabama
The car already made 463/430 with a 230/238 eps cam on the not so most forgiving dynojet dyno.. I dynod the same hp on a mustang dyno as I did this dynojet. So the heads may get me 5+hp.. any real gain is going to be from the camshaft
You're not going to pick up 40HP from another set of heads and bigger camshaft. A.I. does good work, but I doubt any well ported 243 head is going to make any kind of a significant gain over an already TEA ported 317 head. It's the same exact casting, minus the larger combustion chamber of the 317's.
Stop drinking the internet kool aid man.
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Turd Gen Guy
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From: andalusia, alabama
Ill be looking at aftermarket castings then.... I just want close to 500 at the tires. 490 would work and now I have ALOT more heads to look at...any recommendations damian??
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AFR and trickflow have some great small bore castings if you are looking aftermarket now. Esp if you send them out to someone who knows what they are doing with um like Mamo who can recommend the perfect camshaft to match and set you up with all the info on when it'll peak, etc. Good luck hittin that magic number..
Joined: Jul 2007
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From: ELSA, South TEXAS (956) 802-7700
You are going to need an aftermarket casting. Either TrickFlows @ 13 deg.
or Mast @ 11 deg. Rolling over the valve angle helps flow while keeping the
runner volume small ( port speed is essential for your goal ) not peak flow #s
but rather midlift .200-.500. I also think your cam is more than big enough.
Intake restriction HAS to be minimized, large throttle body,MAF or speed
density tuned. Good luck
or Mast @ 11 deg. Rolling over the valve angle helps flow while keeping the
runner volume small ( port speed is essential for your goal ) not peak flow #s
but rather midlift .200-.500. I also think your cam is more than big enough.
Intake restriction HAS to be minimized, large throttle body,MAF or speed
density tuned. Good luck
You can pickup some good power with something like the PRC 227 aftermarket casting heads, but with a stock head I don't think you'll be happy swapping from where you already are. TEA makes good stuff & I doubt other stock ported castings do much different. A aftermarket casting such as the PRC 227 heads will get you better valve drop, better compression options & big air flow.
__________________
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
Jason
Co-Owner, Texas Speed & Performance, Ltd.
2005 Twin Turbo C6
404cid Stroker, 67mm Twins
994rwhp/902lb ft @ 22 psi (mustang dyno) www.Texas-Speed.com
