Help with heads please NA set up
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,008
Likes: 1
From: Gibbstown New Jersey
Help with heads please NA set up
What heads for a 224 cam?
Looking for 2 choices
1 if no budget AFRs, trick flows?
2 On a budget Texas speed,patriot, etc etc
What do you guys think or suggest cam is
224/224 .581 .581 112 LSA
ls6 intake
UD pulley
LG streets, x pipe , no cats
borla stingers
halltech CAI
Pure street car will see track once a year at most
Reason i'm looking at the texas speed heads closely is i got my cam from them they could match my cam up but im sure any head company can, and at the price they are at i can also add a fast 92/92 set up at the same time for the price of the high end after market heads.
Could you tell me if anyone can guess what kinda gains i would see with
1. Adding High end heads AFR, Trickflow, etc
2. Adding ported 243 heads or 5.3 texas speed, patriot, aka budget heads
3. Adding a fast to the high end heads
4. Adding a fast to the budget heads
Thanks alot
Looking for 2 choices
1 if no budget AFRs, trick flows?
2 On a budget Texas speed,patriot, etc etc
What do you guys think or suggest cam is
224/224 .581 .581 112 LSA
ls6 intake
UD pulley
LG streets, x pipe , no cats
borla stingers
halltech CAI
Pure street car will see track once a year at most
Reason i'm looking at the texas speed heads closely is i got my cam from them they could match my cam up but im sure any head company can, and at the price they are at i can also add a fast 92/92 set up at the same time for the price of the high end after market heads.
Could you tell me if anyone can guess what kinda gains i would see with
1. Adding High end heads AFR, Trickflow, etc
2. Adding ported 243 heads or 5.3 texas speed, patriot, aka budget heads
3. Adding a fast to the high end heads
4. Adding a fast to the budget heads
Thanks alot
Race Director
Joined: Mar 2007
Posts: 18,308
Likes: 21
From: Marlton. Increasing performance one speeding ticket at a time! NJ
My guess is that your not going to see too much gains past the 243 heads. The cam lift is not huge so your not going to be really out-flowing the 243's. Where you can really gain, though is by getting a set of milled (or use thinner gaskets) heads where you increase the compression ratio.
That's just my gut feeling, but I'm sure the experts will chime in here.
That's just my gut feeling, but I'm sure the experts will chime in here.
Le Mans Master
Joined: Jul 1999
Posts: 5,005
Likes: 38
From: jackson nj
For the use you give the car, I'd recommend the Patriot heads. The TFS will make more power, but you don't drag race where you'd see this power. In street (even high performance street use) use the Patriot's will deliver all you would need. The setup you are describing should be a mid 11 second drag car, and you will be very impressed with that on the street. 
Safety Car
Joined: Jul 2005
Posts: 4,275
Likes: 4
From: Vancouver WA
Since you are RPM limited due to the stock short block, then don't set up your motor for something that needs 7000+ rpm to flow.
The one advantage the AFR 205's have is they have higher velocity, which will give better throttle response and make a little more low end TQ. And they have a better combustion chamber design, which might help you get by with a little more timing. But you are going to have to pay for that little increase, compared to some ported LS6 heads. If you have the money, the AFR's is a better choice over any OEM ported head. But a set of ported LS6 heads will be much better than any LS1 stock head.
The one advantage the AFR 205's have is they have higher velocity, which will give better throttle response and make a little more low end TQ. And they have a better combustion chamber design, which might help you get by with a little more timing. But you are going to have to pay for that little increase, compared to some ported LS6 heads. If you have the money, the AFR's is a better choice over any OEM ported head. But a set of ported LS6 heads will be much better than any LS1 stock head.
Thread Starter
Melting Slicks
Joined: Jul 2006
Posts: 2,008
Likes: 1
From: Gibbstown New Jersey
Thanks for the replys guys. I dunno much about compression ratios but I was told on LS1 tech that these are a very popular head. Would they work ok with my setup?
http://texas-speed.com/shop/item.asp?itemid=84&catid=20
I pm'd chris at ECS hope he stops in this thread before he goes home for the day
http://texas-speed.com/shop/item.asp?itemid=84&catid=20
I pm'd chris at ECS hope he stops in this thread before he goes home for the day
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Advanced
Joined: Dec 2006
Posts: 55
Likes: 0
From: Brunswick Ohio
I have a 2002 LS1 COUPE I ended using Patriot LS6 Phase 3 heads ported and hand polished with a 5 angle grind. I can say they work great with my Comp. Roller Cam with 589 lift. I also run Nitrous direct port wet ssytem by Zex. I run 75 shot I end up with 500 RWHP.
I felt the power differance between the AFR heads and the Patriot heads verses the money was not worth it to me.
I feel you get alot bang for your money with Patriot. If you intend on racing on the strip then go with AFR heads where 2 tenths of a second might make a difference.
What ever you decide good luck with your project.
Dennis
I felt the power differance between the AFR heads and the Patriot heads verses the money was not worth it to me.
I feel you get alot bang for your money with Patriot. If you intend on racing on the strip then go with AFR heads where 2 tenths of a second might make a difference.
What ever you decide good luck with your project.
Dennis
Instructor
Joined: Jul 2007
Posts: 214
Likes: 0
Higher compression=use of higher octane fuel to prevent knocking. If you run 91-93 octane and keep your compression below 11:1 you should be fine. Higher compression on NA motors is usually a good thing. Too much can be a bad thing though. Boost cars need a lower ratio though. Just make sure you dont go to extreme and mill your heads and get PTV issues or to high of compression you cant run on pump gas. I belive the higher compression cars run more efficently though. Hope someone can clarify that.
Race Director
Joined: Oct 2002
Posts: 16,477
Likes: 26
From: Gone
CI 6-7-8-9-10 Veteran
St. Jude Donor '03
If you're trying to build a powerful engine package, you should probably start with determining/setting your dynamic compression ratio (DCR) and quench (head to piston clearance) first...and then start fussing over things like "advertised" flow numbers, runner size, etc. Not the other way around.
I'm not looking at a spreadsheet right now, but going off memory, with a 224ish cam, you will probably want to end up with a ~62cc chamber with .040" gasket to get your DCR/quench optimum to run all day on 93 octane, and a typical ported/big valve (but not milled) 5.3 head will fit that bill nicely.
Any aftermarket casting can do that too, if optimized (milled to spec) to get you to the DCR you want to achieve. with potentially better flow/velocity, and chamber characteristics..
Once you get your compression figured out, and know you want a 61cc head for example, then start looking for things like the smallest runner size packing the biggest flow #s, and the best forum feedback. Most people shopping aren't comparing $2800 heads to $1200 ones, but if you're truly in the market for any price, with the popular brands...you do tend to get what you pay for.
And always keep in mind advertised numbers is just that...advertised. The Big Mac you actually get never looks like the one you saw on TV.
I'm not looking at a spreadsheet right now, but going off memory, with a 224ish cam, you will probably want to end up with a ~62cc chamber with .040" gasket to get your DCR/quench optimum to run all day on 93 octane, and a typical ported/big valve (but not milled) 5.3 head will fit that bill nicely.
Any aftermarket casting can do that too, if optimized (milled to spec) to get you to the DCR you want to achieve. with potentially better flow/velocity, and chamber characteristics..
Once you get your compression figured out, and know you want a 61cc head for example, then start looking for things like the smallest runner size packing the biggest flow #s, and the best forum feedback. Most people shopping aren't comparing $2800 heads to $1200 ones, but if you're truly in the market for any price, with the popular brands...you do tend to get what you pay for.
And always keep in mind advertised numbers is just that...advertised. The Big Mac you actually get never looks like the one you saw on TV.
Last edited by Y2Kvert4me; Apr 7, 2008 at 09:23 PM.
Melting Slicks
Joined: Jan 2004
Posts: 2,284
Likes: 3
From: NW Chicago, IL/Clearwater Beach, FL
Livernois has a GP going on......
Livernois Motorsports Stage 2 LS-Series "243" Heads
http://forums.corvetteforum.com/show....php?t=1963989
Livernois Motorsports Stage 2 LS-Series "243" Heads
http://forums.corvetteforum.com/show....php?t=1963989
