Heads FAQ??
Just curious if there's any FAQs or reading material on heads, i.e., when too much flow hurts performance, or what happens when you use too much head on a stock cube motor? I'm also looking for info on whether I'll have problems using LS6 heads (243 casting) on my '00 Formula. Thanks.
Last edited by Spectator; Sep 28, 2006 at 11:09 PM.
Wow, are there really no guides about what = a good head on this forum? If not, guess I'll just have to ask more specific questions.
I'm looking at two cam options:
-LS6 Cam
-224/224 114 LSA Cam
I need a smog-friendly cam, so 224's the highest I'll go. But my first priority is heads. I'm looking at:
-Patriot heads
-Stock LS6 heads
I was thinking about going the LS6 Cam/Head route because it seems like I can just buy a used LS6 cam, a set of used LS6 Heads, and probably get heads and cam in my car for < $1000. I'm assuming that I can use stock everything on the LS6 heads, and it'll be fine. Here's my questions:
1. Am I right in thinking that? Or should I really be replacing springs/rockers/lifters/pushrods even with just a tiny little LS6 cam?
2. Do I need to worry more about fine details like which year the LS6 cam came from? If so, what identifying marks/part numbers can I use to tell the difference when shoping around?
3. Can I get any LS6 heads, or do I need to worry about little things like what car and year they came from, whether they have the sodium-filled valves, and what identifying marks can be used to tell the different things apart?
4. Will all LS6 heads fit easily on a '00 F-Body? Or do I need to buy more stuff to get 'em to fit?
If I go with Patriot Heads and 224/224 114 cam:
5. Should I be looking at Stage I, II, or III heads? What are the important specs I need to look at to match it to a cam?
6. What chamber size/bore/intake and exhaust valve dimensions should I be looking for? Why do they matter/How do they affect the power curve?
7. Should I be looking for different specs if I use just an LS6 cam instead?
8. What extra components would I need for a good, clean install? (springs/rockers/lifters/pushrod/install tools/etc)
Also:
8. What heads should I be looking for if I stick with my '00 LS1 cam? Is a Patriot head too much in that case, or is ported always better no matter what?
Hope to figure out more about this stuff. Thanks.
I'm looking at two cam options:
-LS6 Cam
-224/224 114 LSA Cam
I need a smog-friendly cam, so 224's the highest I'll go. But my first priority is heads. I'm looking at:
-Patriot heads
-Stock LS6 heads
I was thinking about going the LS6 Cam/Head route because it seems like I can just buy a used LS6 cam, a set of used LS6 Heads, and probably get heads and cam in my car for < $1000. I'm assuming that I can use stock everything on the LS6 heads, and it'll be fine. Here's my questions:
1. Am I right in thinking that? Or should I really be replacing springs/rockers/lifters/pushrods even with just a tiny little LS6 cam?
2. Do I need to worry more about fine details like which year the LS6 cam came from? If so, what identifying marks/part numbers can I use to tell the difference when shoping around?
3. Can I get any LS6 heads, or do I need to worry about little things like what car and year they came from, whether they have the sodium-filled valves, and what identifying marks can be used to tell the different things apart?
4. Will all LS6 heads fit easily on a '00 F-Body? Or do I need to buy more stuff to get 'em to fit?
If I go with Patriot Heads and 224/224 114 cam:
5. Should I be looking at Stage I, II, or III heads? What are the important specs I need to look at to match it to a cam?
6. What chamber size/bore/intake and exhaust valve dimensions should I be looking for? Why do they matter/How do they affect the power curve?
7. Should I be looking for different specs if I use just an LS6 cam instead?
8. What extra components would I need for a good, clean install? (springs/rockers/lifters/pushrod/install tools/etc)
Also:
8. What heads should I be looking for if I stick with my '00 LS1 cam? Is a Patriot head too much in that case, or is ported always better no matter what?
Hope to figure out more about this stuff. Thanks.

