Looking for a head that flows around 320cc's BUT doesn't cost $3K!
#1
TECH Addict
Thread Starter
Join Date: Jan 2002
Location: Magee MS
Posts: 2,950
Likes: 0
Received 0 Likes
on
0 Posts
Looking for a head that flows around 320cc's BUT doesn't cost $3K!
I'm going to start my buildup here soon and I was looking for a good head(probably a ls6 casting or a 6.0 since I will be using a 6.0 block).
Anyone got any leads to where I can find these?
Josh S.
Anyone got any leads to where I can find these?
Josh S.
#5
TECH Fanatic
iTrader: (1)
Join Date: Oct 2003
Location: Houston, TX
Posts: 1,207
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by KingCrapBox
Remember, you get what you pay for.
I try almost daily to figure out ways to get our cylinder head packages to cost less than what they do... but there is simply no way around it, quality costs money. Our heads flow among the best in the market, if not the best, but our pricing is definitely not cheap comparatively! The only way I could get the prices down would be to use cheaper valves, cheaper springs, and cheaper retainers/locks. But that really isn't how I want to run my business. I'd rather all our products be of the highest quality possible.
Having said that though, 320 cfm is easy, and I think we could probably do it for under 3k...
Chuck
Trending Topics
#11
TECH Resident
Join Date: Sep 2003
Location: Working in the shop 24/7
Posts: 848
Likes: 0
Received 1 Like
on
1 Post
Originally Posted by The Guy in MY 99TA
I'm going to start my buildup here soon and I was looking for a good head (probably a ls6 casting or a 6.0 since I will be using a 6.0 block).
Anyone got any leads to where I can find these?
Josh S.
Anyone got any leads to where I can find these?
Josh S.
Questions:
Why 320 cfm as a benchmark?
Where did this "magic" number come from?
At what lift are you looking for this "magic" number?
At what port volume are you looking for this "magic" number?
Who's testing methods and flow bench are you looking to obtain this "magic" number?
I've got one word of advice for you...
"COMBINATION"
Ed
#13
12 Second Club
iTrader: (5)
Join Date: Nov 2001
Location: Clarksville, TN
Posts: 822
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by SPANKY LS1
EDC- Can you list some of your more successful LSx based "combos", both in ETs and dyno numbers?
Shawn
Shawn
I'm curious to see this as well, because personally, I have never seen any. Although, I would love to.
#14
TECH Junkie
iTrader: (2)
Originally Posted by SPANKY LS1
EDC- Can you list some of your more successful LSx based "combos", both in ETs and dyno numbers?
Shawn
Shawn
#15
TECH Junkie
iTrader: (2)
Josh, Ed is right about the combination though. My heads only peak at 262@.700and 257@.600 . They are not hogged out and I have good tq through the entire rpm range. You have seen my car and you know it is Heavy so dont let the biggest cam and Highest flowing heads cost you a lot of money because in the end, You know I am still gonna whip Ya
#16
TECH Addict
Thread Starter
Join Date: Jan 2002
Location: Magee MS
Posts: 2,950
Likes: 0
Received 0 Likes
on
0 Posts
lol....... i got ya....... but I AINT SKEERED!!!!!!!! lol
Well I'm looking for something to go on a 6.0 litre. I chose the 320 mark plainly b/c I was looking at the absolute speed heads and they were like 2800 bucks and I'm assuming that is with a core. Of coarse I could have opted for the 330 mark.. but I'm not looking for the badest head on the market...... if I was I would go C5R...... but thats not in the plans for now and probably won't be needed anytime soon.
I'm looking for something that would perform well in a forged 6.0 liter, with something along the lines of a 234-238/240-244 duration camshaft. I'm just wanting to go a little different...... most people either do big cams and stock heads ort big heads and smaller cams........ I want to try a little of both worlds all in one combo.
Josh S.
Well I'm looking for something to go on a 6.0 litre. I chose the 320 mark plainly b/c I was looking at the absolute speed heads and they were like 2800 bucks and I'm assuming that is with a core. Of coarse I could have opted for the 330 mark.. but I'm not looking for the badest head on the market...... if I was I would go C5R...... but thats not in the plans for now and probably won't be needed anytime soon.
I'm looking for something that would perform well in a forged 6.0 liter, with something along the lines of a 234-238/240-244 duration camshaft. I'm just wanting to go a little different...... most people either do big cams and stock heads ort big heads and smaller cams........ I want to try a little of both worlds all in one combo.
Josh S.
#18
TECH Addict
Thread Starter
Join Date: Jan 2002
Location: Magee MS
Posts: 2,950
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Damian
My heads flow almost that much, cost about half of 3K....
BTW, peak flow #'s mean absolutely jack **** if low-mid lift #'s suck...
BTW, peak flow #'s mean absolutely jack **** if low-mid lift #'s suck...
#19
FormerVendor
Well 320 cfm with a normal flow curve is a lot of cylinder head. You can run a "smaller" cam with it and make a more civivlized combination or you could use it on a bigger engine to make more power than you could with a lesser head. At least one combination I am talking about with heads in this ballpark went 9.60s so again that is a decent amount of cylinder head. I've seen 285 at .400 on some of these heads depending on chambers and valvejobs etc. with fairly normal valves so it all depend on what is being done.
Without knowing all the facts though you could have a 320 cfm head that was decent up high but had bad midlift and yet still went turbulent up too high. It also might be really really large and further reduce cylinder filling at lower rpms due to lower velocity than a comparable flowing yet smaller head could.
Basically I look for an appropriately sized head that flows great numbers for it's size both port size and valve size and has quality parts and is setup correctly for the intended usage and duty cycle that is expected of it. Anyone can do a worse or lesser job for cheaper, myself included. It's all about what is needed to get the job done and then some. If you don't "need" the airflow potential with the cam you are comfortable running then you will not see any big gains anyway.
We will soon be testing the smaller AFRs too because especially with the smaller heads and cams cars the smaller ports may help make more area under the curve. On an engine that needs way more air, like a 7500 rpm stroker, you will need more than 300 cfm probably to get the job done.
Without knowing all the facts though you could have a 320 cfm head that was decent up high but had bad midlift and yet still went turbulent up too high. It also might be really really large and further reduce cylinder filling at lower rpms due to lower velocity than a comparable flowing yet smaller head could.
Basically I look for an appropriately sized head that flows great numbers for it's size both port size and valve size and has quality parts and is setup correctly for the intended usage and duty cycle that is expected of it. Anyone can do a worse or lesser job for cheaper, myself included. It's all about what is needed to get the job done and then some. If you don't "need" the airflow potential with the cam you are comfortable running then you will not see any big gains anyway.
We will soon be testing the smaller AFRs too because especially with the smaller heads and cams cars the smaller ports may help make more area under the curve. On an engine that needs way more air, like a 7500 rpm stroker, you will need more than 300 cfm probably to get the job done.