cylinder heads

[z28charged]

who makes good cylinder heads for are lt1's.looking to make some serious hp along with porting them out or a full cnc set of head let me know thanks pat

[Tony]

AI, Dart, Hell, you can get a set of summit heads and port them for about 600hp with FI.

[z28charged]

which brand is AI never heard of them. i have some world product heads but i don't know if the tpi will bolt up to them or will they. anyone one running AFR 200 cylinder heads

[Gatorhead]

Originally Posted by z28charged

which brand is AI never heard of them. i have some world product heads but i don't know if the tpi will bolt up to them or will they. anyone one running AFR 200 cylinder heads

There are days and days of reading material on this subject. The search feature will yield all of them and then you can make the best educated decision for yourself, or we could also lend some support.

[Paulster2]

AI = Advanced Induction

[crabbyjoe]

AFR, then get them touched up by hand. Will kill Ai an day of the week

[FANTA-Z]

Heads are not the full equation. Let us know what you have or going to get for the motor and it will help us determine what might be the best head for your application. A larger combustion head does not always mean you will get more power. The airflow is what your wanting and like stated depending on what your application is it could be less of a flowing head that suits your needs better.

[Paulster2]

Originally Posted by crabbyjoe

AFR, then get them touched up by hand. Will kill Ai an day of the week

I don't know about [sic] "killing Ai an day of the week", but he asked what AI was, so pointed him in that direction. Oh, BTW, welcome to the site! Post up in the Welcome section!

[Paulster2]

Originally Posted by z28charged

which brand is AI never heard of them. i have some world product heads but i don't know if the tpi will bolt up to them or will they. anyone one running AFR 200 cylinder heads

Something bothering me about your statement here. You say "tpi" ... what year of car are you running, or did you just use that as a generic term?

[FlamingoLT1]

Originally Posted by FANTA-Z

Heads are not the full equation. Let us know what you have or going to get for the motor and it will help us determine what might be the best head for your application. A larger combustion head does not always mean you will get more power. The airflow is what your wanting and like stated depending on what your application is it could be less of a flowing head that suits your needs better.

I disagree with a few things in your post. A "less of a flowing head" is never the answer. If you're after torque and throttle response use more cubes. You always want the best flowing head possible. I think cylinder heads are the biggest part of an engine equation as they are what makes the power. LS3s prove that a large intake port can make outstanding power on a small CI build. I say set a goal in terms of power or ET, and also budget. Pick the best head you can buy to meet your goals and plan your build around that. Since the OP hasn't stated any goals, hard to make a recommendation at this point

[FANTA-Z]

Im stating you CAN have too much air that will actually not net you anymore power and can cause more turbulance which will also cause you to lose power. How do I know this? It happened to me.

[FlamingoLT1]

describe the heads/engine where this "turbulence" occcured from having too much airflow. CSA, valve size, etc.

[Paulster2]

Originally Posted by FlamingoLT1

describe the heads/engine where this "turbulence" occcured from having too much airflow. CSA, valve size, etc.

Not that I'm going to speak for Glenn (when Glenn says something, it's usually on the level and can be believed without reservation), but I believe the issue is the heads can flow more air than the engine can use. This can cause the air to slow down in certain spots and thus cause the turbulence Glenn is talking about. Air velocity (as I'm sure you're well aware) is essential for making low end torque. Without it, your engine will bog. Make the parts work together, if you don't, the engine will be a dog.

[FlamingoLT1]

engines, especially camshafts and cylinder heads can't be described with generalizations like "too much airflow for the engine." Still going to use the LS3 as an example... you've got a 260 cc head flowing 330cfm on a 6.0L engine with a tiny 204/211 cam. But I'll wait to hear specifics on fantaz's engine.

[FANTA-Z]

Here is a couple of articles that describe exactly what I was trying to state and what Paul helped make sense. Maybe I shouldnt have said too much into the engine but just because you have the largest flowing head does not mean your going to make the most power.

Small Block Chevy and Ford Performance Cylinder Heads: Engine Builder

Engine builder's handbook ... - Google Books