Has anyone used the LPE ported heads and how well do they work? Never hear anyone talking about them. Also, has anyone cut with the $2500 for the AFR's and are you happy with them?
Scott
Little checking around to try and make life easier whe.n the time comes to finally buy the heads of my dreams

 

Well seeing that the AFRs aren't out yet...

 

Against political correctness I will tell you what LPE's Stg 2 and Stg 3 heads flowed on my bench, PM me if you would like to know.

 

 

Brian PM'ed you about some heads last week, I am oh so close to the funds to order, cant wait

 

Honestly..I have seen them all..LPE's,CNC inc,TEA,Patriots,JPR,MTI,MMT,Absolute speed...All are great quality casting's..but as far as price and power goes..I would have to choose between TEA,Absolute speed,JPR and patriot...MTI does VERY high quality work..but also very expensive...I would steer clear of the LPE's and CNC inc though...they use way to large of an intake volume..and the CNC inc head's I flowed fell flat on their faces after .550"..some of the LPE's fall off as low as .525" but i have seen them climb to .600" as well...I am not really tryin to bash at all..Just trying to save u some cash...Brian Tooley is excelent with head work at TEA and Jay at absolute is a great porter as well...Terry at patriot is the man as far as customer service and price!...Joe Prince is working for JD's auto performance and he has some nice port design's as well with great pricing..ya can't really go wrong with any of those guy's.

Carter

 

Neither. AFR's aren't out, and you'd need a kidney donation to buy LPE's underperforming stuff....

TEA makes an excellent cylinder head for much less than kidney donations. Check 'em out.....#'s are in my sig with a faily small cam by today's standards..

josh

 

Nice, "Sponsor Trolls" now too

 

i would seriously wait for the AFRs, theyre supposed to be the best we have seen yet. lpe is overpriced.

 

Youg guys are great and very informative, sorry about the AFR question, I hadn't called the Sperlings yet but was planning on it. I think I will call and ask when their date is, it may be around the time I have the cash to buy :^) How about some web addresses though on TEA and a few of the others, I have Patriots web address, I also wanted to know what the difference is on the 5.3 heads compared to the stock LS1 or the 6.0? Is the major difference just the CC? I know these are newbie questions but I just recently got into the LS1 thing with the purchase of a 98 A4 TA. I used to have a 94 Z M6 back in the day that ran 11.01@129.55 with no suspension work, obviously! I want to get back into it now and a lot of stuff has changed. I figure I will find the heads I want and then ask for cam recommendations from the same people that supply the heads.

 

all the sponsors talked about are direct links on the left of this webpage!!

Good luck!

 

Not a sponsor anymore but ARE's new 4.8 Ltr heads are awesome. Also customer service is up to par these days . I have the 1st set, very pleased.

 

The right side.

 

Sent you a PM. I have LPE heads on one of my cars.

 

What is your opinion of the GMPP LS6 heads. The one's I saw had LPE serial #s on them

 

I just had a customer replace these heads with a set of our new 5.3 Stg 1.5 heads that were fully hand finished. The customer said that some places in the torque curve was up almost 100 lb ft of torque, it was an A4 car and made 480 RWTQ, 410 RWHP. Hope this helps, and I can put you in contact with my customer.

 

Obviously an unlocked converter dyno, so i would take the torque comments with a grain of salt. 410 Hp unlocked is a good result with a medium cam.

 

Ok, one thing need to be made clear right here right now. The GM CNC heads are not the only LPE head. So before you bash LPE, you need to be straight on which head you are talking about. The 2001 GMPP CNC head (done by LPE) was a bit different than the 2002 and later head, the 2001 head is one that often will flow to .600 as the design was a bit differnet. Since the heads weren't required to flow to .600 they changed the port to maximize flow at lower lifts. The 2002 and later I have posted plenty of flow data on. They are matched to the Grand Am cam, and they do have a large intake runner.

Now as for the heads from LPE, you don't need a kidney transplant for them. LPE charges $1595 or so for CNC work on a set of LS6 heads. If you want the pots hand blended and finished it is about $800. Brian, feel free to send me your flow data on LPE or any other heads on your bench. Just let me know what orifice size, bench type, etc... you used.

Here is the data I have. From what I have seen LPE heads have excellent low lift numbers and flow just as well as any other StgII heads up top. Here is some flow data I have of both the CNC heads and the the LPE heads.

Intake GM \ LPE LS6 CNC 2.00/1.500 250CC Intake - SDCP numbers
.050 -
.100 65
.150 -
.200 138
.250 -
.300 214
.350 -
.400 261
.450 -
.500 292
.525 295
.550 285
.575 -
.600 282
.625 -
.650 -
.700 -

Exhaust
.050 -
.100 58
.150 -
.200 113
.250 -
.300 157
.350 -
.400 191
.450 -
.500 210
.525 212
.550 214
.575 -
.600 218
.625 -
.650 -
.700 -

Intake GM \ LPE LS6 CNC 2.00/1.500 250CC Intake - MTI numbers
.050
.100 67
.150
.200 142
.250
.300 210
.350
.400 254
.450
.500 290
.525
.550 304
.575
.600 286
.625
.650
.700

Exhaust
.050
.100 50
.150
.200 104
.250
.300 150
.350
.400 185
.450
.500 203
.525
.550 210
.575
.600 212
.625 -
.650 -
.700 -

Intake LPE Stage I
.050 -
.100 -
.150 -
.200 153
.250 -
.300 228
.350 -
.400 276
.450 288
.500 294
.525 -
.550 307
.575 -
.600 314
.625 -
.650 -
.700 -

Exhaust
.050
.100 -
.150 -
.200 120
.250 -
.300 171
.350 -
.400 205
.450 -
.500 220
.525 -
.550 224
.575 -
.600 225
.625 -
.650 -
.700 -

Intake LPE Stage III (hand finished, etc same as most shops stgII)
.050 -
.100 -
.150 -
.200 158
.250 -
.300 228
.350 -
.400 278
.450 -
.500 296
.525 -
.550 314
.575 -
.600 314
.625 -
.650 -
.700 -

Exhaust
.050
.100 -
.150 -
.200 123
.250 -
.300 173
.350 -
.400 204
.450 -
.500 212
.525 -
.550 218
.575 -
.600 224
.625 -
.650 -
.700 -

Again, don't confude the LPE in house head with the GMPP head. For comparison sakes, I have a buddy with a set of GMPP heads on a 2001 Z06 with the stock 2001 cam that makes 390RWHP.

As for the in house heads underperforming, I don't call 425-430 HP with a small cam (GT2-3) to be anything to be ashamed of. LPE has its target market other shops have theirs.

 

I thought that $1595 price was per head? Not for both?

I could easily be confused on that though

 

I have the in house LPE CNC 241 castings that were hand polished along with the chambers. I bought them from an individual who bought them new from LPE and never installed them. He gave me the LPE invoice. They were $2195 for the pair and had a $600 core charge on a separate invoice. I wish I would have had them flowed before i installed them. I get bashed a lot for running these heads. Think what was available back in 2001 and what heads were selling for. I paid $1800 for what were $2200 heads, got new head bolts and gaskets and got to keep my cores. I have contacted Lingenfelter and cannot get any flow # on these either. Here is a pic of the invoice.

http://edit.imagestation.com/pixami/...=1076604446205