Flow numbers for GM Perfrmance parts LS6 CNC heads????
02-03-2005, 09:34 PM
#24
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Originally Posted by JohnnyStorm
Does anyone who has a set of these heads have any closeup pictures? I would like to see the finish work on these heads.
02-03-2005, 09:35 PM
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Originally Posted by Bluehawk27
GM parts direct has the 65cc GM PN#88958665 heads for 950.00, are these the ones that have already been CNC'd by you guys?!
02-04-2005, 07:27 AM
#26
Originally Posted by Bluehawk27
GM parts direct has the 65cc GM PN#88958665 heads for 950.00, are these the ones that have already been CNC'd by you guys?!
Yep those are the flow numbers I listed at the beginning of this thread. They are currently back ordered but a big batch is going through the shop right now, so dealers will have them soon. Remember that price is per head, but no core charge so you will be looking at about $1,900.00 for a pair ready to install.
Ed
02-04-2005, 08:10 AM
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Those ARE heads were flowed on a 4.125 bore. And they came off a car that on HP beat 01-Z on spray, so I know they work real well. My TEA heads flowed 270@400 and 325@ 650 on a 4in bore. When they were on my 372 backed by a TH400 and a 12 bolt I put down 472rwhp and 513tq and trapped at 127 in a 3350lb car. I will drive to your guys house, pick them up and deliver them to High Flow heads if you want. Would you be interested in flowing your 2.100 valve heads to?
02-04-2005, 11:55 AM
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Originally Posted by JNorris
On a stock bottom end LS1 what would the compression ratio be with the 65cc GM PN#88958665 heads be?
John, those are the heads I have, I believe the CR I figured was 10.5:1
02-04-2005, 12:34 PM
#31
I talked to the guy that has the heads, he's into it and should be posting up here soon.
I'm sure Jason is willing to film the test or whatever people want to do. I think this should be a very fair test, since this particular set of heads was purchased independantly and installed elsewhere. Jason had very good results with them, and later had us remove them to do something else. He has them and his GT2-3 cam, and probably some other goodies still for sale.
Maybe if everyone likes the results, somebody will buy them from Jason since he's nice enough to let us use his parts for our comparison
Ed
I'm sure Jason is willing to film the test or whatever people want to do. I think this should be a very fair test, since this particular set of heads was purchased independantly and installed elsewhere. Jason had very good results with them, and later had us remove them to do something else. He has them and his GT2-3 cam, and probably some other goodies still for sale.
Maybe if everyone likes the results, somebody will buy them from Jason since he's nice enough to let us use his parts for our comparison
Ed
02-04-2005, 01:53 PM
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Sounds good, I have a Dig camera and can make the vids is you want, I made all of 01-Z's. If you want I can get them in right away to at High Flow, just shoot me a PM when your ready.
02-04-2005, 05:17 PM
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ED, I'm in process of going to a bigger cam w/346 ci. Do you have any flow #'s for
2.02/1.60, or even 2.055 if going to 383 etc? I have the 60cc heads w/o.55 milling.
Thankx.
2.02/1.60, or even 2.055 if going to 383 etc? I have the 60cc heads w/o.55 milling.
Thankx.
02-04-2005, 06:21 PM
#35
For someone with a 4.125" bore, how much would it be for a set of those LPE LS6 heads with 2.100" intake valves?
Reason Im asking is I have some absolute cr@p steage 3 ARE heads that I would like to take off the car from something else. Im considering AFR 225s, but Im interested in what the price comparison would be.
What is the CC if the intake port?
Reason Im asking is I have some absolute cr@p steage 3 ARE heads that I would like to take off the car from something else. Im considering AFR 225s, but Im interested in what the price comparison would be.
What is the CC if the intake port?
02-05-2005, 07:43 AM
#36
The LS6 heads with stock valves have an intake port volume of 244cc and exh 85cc
If you want to upgrade to the 2.100 valves, the best thing to do is buy the heads straight from scoggin-dickey and send them back to us for big valves, bigger seats, new valve job, and I would get the full hand sanding for maximum flow. We would charge 950.00 for all of the extra work. This would still give you a full boogie set of heads for less than 3,000.00
new GM LS6 castings CNC ported by LPE
2.100"/1.57"
full hand sanding for max flow
professional machining & re-assembly
You probably want some better springs for your big inch motor, we'll install yours, or we can sell you a set of whatever you need.
With this same head combination and our GT1-1 cam on a 427ci engine we see 500RWHP!!
Hope this helps,
Ed
If you want to upgrade to the 2.100 valves, the best thing to do is buy the heads straight from scoggin-dickey and send them back to us for big valves, bigger seats, new valve job, and I would get the full hand sanding for maximum flow. We would charge 950.00 for all of the extra work. This would still give you a full boogie set of heads for less than 3,000.00
new GM LS6 castings CNC ported by LPE
2.100"/1.57"
full hand sanding for max flow
professional machining & re-assembly
You probably want some better springs for your big inch motor, we'll install yours, or we can sell you a set of whatever you need.
With this same head combination and our GT1-1 cam on a 427ci engine we see 500RWHP!!
Hope this helps,
Ed
02-05-2005, 11:42 AM
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Originally Posted by Ed Potter @ LPE
Hi, we actually do the CNC work on those heads for GM, let me give you some info:
the heads are made in 2 versions, a 60cc and a 62cc chamber. The 60cc chamber will give you about 11.3:1 compression on a stock bottom end.
Flow numbers:
Int. Exh.
200 150 117
300 225 168
400 273 202
450 285 210
500 291 217
550 304 221
600 311 222
They still use the LS6 sodium filled valves, stock size, and LS6 valvesprings. The 60cc versions have been milled approx. .055" to achieve this chamber size, so you will have to notch the 4 corner bolt recesses to make your intake fit, but it's no big deal. Over all, a very good set of heads for the price considering your getting new, genuine GM LS6 heads, CNC ported for about $1900.00 outright.
Fell free to let me know if I can answer any other questions for you.
Ed
the heads are made in 2 versions, a 60cc and a 62cc chamber. The 60cc chamber will give you about 11.3:1 compression on a stock bottom end.
Flow numbers:
Int. Exh.
200 150 117
300 225 168
400 273 202
450 285 210
500 291 217
550 304 221
600 311 222
They still use the LS6 sodium filled valves, stock size, and LS6 valvesprings. The 60cc versions have been milled approx. .055" to achieve this chamber size, so you will have to notch the 4 corner bolt recesses to make your intake fit, but it's no big deal. Over all, a very good set of heads for the price considering your getting new, genuine GM LS6 heads, CNC ported for about $1900.00 outright.
Fell free to let me know if I can answer any other questions for you.
Ed
pulling out a HOTCAM & replacing Springs, so how much gain w/2.02's with
a 346? Flow rates & HP gains.
I was wondering if the extra time & expense would be worth the extra gain
The cam is going to be a 228/230 590 lift. Thank-You
02-05-2005, 04:19 PM
#38
Its really nice to see to very respectiable shop backing up there work and what they sale. This give me alot of confidence in buying from both of u guys. I feel if a shop would back down from a challenge like this one then they truely dont believe in there work. Thanks alot and I cant wait to watch the vids
02-07-2005, 05:39 AM
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Originally Posted by Project R/SS
Sorry I meant what class does he run in?
http://www.davidfarmerracing.com/