ZZZ0006 Posted December 19, 2014 Share Posted December 19, 2014 I much rather have Joe do heads than AH. Probably cheaper and better performing too. Joe does not do his own head work, he uses WCCH. Link to comment Share on other sites More sharing options...
joe@cpr.com Posted December 19, 2014 Share Posted December 19, 2014 I use WCCH or AI depending on preference of the customer but we would do the R&R of the heads. Link to comment Share on other sites More sharing options...
Unreal Posted December 19, 2014 Share Posted December 19, 2014 Exactly, and those are the only 2 companies I would let touch my stock heads. Those are the two that consistently perform, own basically every 1/4, 1/2, 1 mile record, put out 600+rwhp time and time again, and have no issues. Link to comment Share on other sites More sharing options...
ZZZ0006 Posted December 19, 2014 Share Posted December 19, 2014 Exactly, and those are the only 2 companies I would let touch my stock heads. Those are the two that consistently perform, own basically every 1/4, 1/2, 1 mile record, put out 600+rwhp time and time again, and have no issues. Link to comment Share on other sites More sharing options...
Ted Y Posted December 19, 2014 Share Posted December 19, 2014 Exactly, and those are the only 2 companies I would let touch my stock heads. Those are the two that consistently perform, own basically every 1/4, 1/2, 1 mile record, put out 600+rwhp time and time again, and have no issues. I think this was just meant as a helpful suggestion. You can ultimately choose whoever you like. Link to comment Share on other sites More sharing options...
Unreal Posted December 19, 2014 Share Posted December 19, 2014 Don't get me started on AH shady advertising and the BS they spread. Not impressed with them at all, or how they act. Strange how Katech, RPM, FSP, Quality, CPR, and about all use WCCH or AI heads without issues, yet AH claims they are constantly fixing "bad" WCCH heads. I don't buy it that they are the only shop in the country that has issues with WCCH, which is one of their main competitors, yet no one else does, and all the big player vette shops use WCCH or AI. Also ask them for a single car with their heads making 600+rwhp and it is crickets. Or when they say if you use anyone else but their super duper special guides your heads will fail,yet when people point out they have other guides with no issues, it is discounted and just a matter of time before the fail. The way they go about trying to undermine competitors is not a business I will support. I rather see results, and when it comes to that, I still haven't seen any from them, yet the competitors time and time again put up great reliable numbers. That being said, it looks like you are just going for a fix, not performance, so choose anyone. Flip a coin. Just about anyone can machine a head (besides GM is seems) so I'm sure you will be happy, but for people wanting power/performance, that is where the differences come. Like Ted said, choose whoever, but I wouldn't discount quality advise. Hell, take it to 5-6 different local shops that can do a guide/valve job and skip the expense if you just want new guides and no performance work done. Link to comment Share on other sites More sharing options...
old yeller Posted December 19, 2014 Share Posted December 19, 2014 Don't get me started on AH shady advertising and the BS they spread. Not impressed with them at all, or how they act. Strange how Katech, RPM, FSP, Quality, CPR, and about all use WCCH or AI heads without issues, yet AH claims they are constantly fixing "bad" WCCH heads. I don't buy it that they are the only shop in the country that has issues with WCCH, which is one of their main competitors, yet no one else does, and all the big player vette shops use WCCH or AI. Also ask them for a single car with their heads making 600+rwhp and it is crickets. Or when they say if you use anyone else but their super duper special guides your heads will fail,yet when people point out they have other guides with no issues, it is discounted and just a matter of time before the fail. The way they go about trying to undermine competitors is not a business I will support. I rather see results, and when it comes to that, I still haven't seen any from them, yet the competitors time and time again put up great reliable numbers. That being said, it looks like you are just going for a fix, not performance, so choose anyone. Flip a coin. Just about anyone can machine a head (besides GM is seems) so I'm sure you will be happy, but for people wanting power/performance, that is where the differences come. Like Ted said, choose whoever, but I wouldn't discount quality advise. Hell, take it to 5-6 different local shops that can do a guide/valve job and skip the expense if you just want new guides and no performance work done. Not again............ Link to comment Share on other sites More sharing options...
Desertdawg Posted December 19, 2014 Share Posted December 19, 2014 A person could still probably pick up an '08-'09 Grand Sport. The Grand Sport wasn't introduced until 2010. . Link to comment Share on other sites More sharing options...
ZZZ0006 Posted December 19, 2014 Share Posted December 19, 2014 Don't get me started on AH shady advertising and the BS they spread. Not impressed with them at all, or how they act. Strange how Katech, RPM, FSP, Quality, CPR, and about all use WCCH or AI heads without issues, yet AH claims they are constantly fixing "bad" WCCH heads. I don't buy it that they are the only shop in the country that has issues with WCCH, which is one of their main competitors, yet no one else does, and all the big player vette shops use WCCH or AI. Also ask them for a single car with their heads making 600+rwhp and it is crickets. Or when they say if you use anyone else but their super duper special guides your heads will fail,yet when people point out they have other guides with no issues, it is discounted and just a matter of time before the fail. The way they go about trying to undermine competitors is not a business I will support. I rather see results, and when it comes to that, I still haven't seen any from them, yet the competitors time and time again put up great reliable numbers. That being said, it looks like you are just going for a fix, not performance, so choose anyone. Flip a coin. Just about anyone can machine a head (besides GM is seems) so I'm sure you will be happy, but for people wanting power/performance, that is where the differences come. Like Ted said, choose whoever, but I wouldn't discount quality advise. Hell, take it to 5-6 different local shops that can do a guide/valve job and skip the expense if you just want new guides and no performance work done. It's strange that I have never read one bad thing about the shop anywhere on the internet, I have spoken to a lot of shops in regards to doing my heads, very unimpressed with most of them. Kohle at American Heritage has never once bashed any competitors when I have spoken to him on the phone numerous times, I have never read a thing where he bashed another builder, so I don't know where you have been reading all of this "shady advertising or BS they spread". Kohle is very professional on the phone, does not mind answering questions, he comes across as a stand up guy and he does stand behind his work. Have you ever spoken to him personally, have you ever used a set of his heads? It's funny that Richard from WCCH had this to say: Quote: The primarly reason we use bronze valve guides is because GM will not sell the guides separately. Rather they will sell you an entire replacement head. The aftermarket parts supply only furnishes bronze alloy valve guides. I personally like the powdered metal valve guides the factory uses but the supplier does not sell piece meal to the public. Additionally we have no long term wear issues with the bronze guides and solid stem stainless steel valves. I was given the nitty gritty results of the newest spintron testing information from one of the members at Corvette Forum, the Ferrea Valves he uses tested out just fine. Just because he chooses not to use Bronze Guides (he will install them if you request them and SS Valves as well) like others does not make the PM or Moldstar 90 Guides suck, he has a lot of "why behind what he chooses to do do when fixing the heads". I personally do not want to run a heavy solid stainless steel valve in my heads, I prefer the same weight that was spec'd from GM, and prefer the thicker wall thickness of the Ferrea Valve. He has one customer that has over 50,000 miles on a set of his re-worked heads, they re-checked them after 50K, all in spec and fine. How many other Z06 owners have racked up over 50K on their cars running WCCH re-worked heads and had them checked? Crickets on the Corvette Forum when I asked that question. As stated I cannot find one negative comment about his shop: (I can find a bunch of negative comments about other shops very easily) http://www.yelp.com/biz/american-heritage-performance-harbor-city https://www.google.com/?gws_rd=ssl#q=american+heritage+performance&lrd=0x80dd4a753c860093:0xbc29102874b9e7a2,1 https://local.yahoo.com/info-141774992-american-heritage-performance-harbor-city?csz=Harbor+City%2C+CA&stx=Business+to+Business+Business+Services+Management+Consulting http://www.corvetteforum.com/forums/southern-california/3339619-american-heritage-performance-shop.html http://www.corvetteforum.com/forums/c6-z06-discussion/3535415-exceptional-service-at-american-heritage-performance.html http://www.corvetteforum.com/forums/c5-z06-discussion/3517423-american-heritage-performance-in-habor-city-rocks.html http://www.corvetteforum.com/forums/c6-z06-discussion/3390944-american-heritage-performance-my-experience.html http://www.corvetteforum.com/forums/southern-california/3407549-my-interaction-with-american-heritage-performance.html http://www.corvetteforum.com/forums/southern-california/3428635-american-heritage-performance.html http://www.corvetteforum.com/forums/c6-z06-discussion/3512860-american-heritage-a.html http://www.corvetteforum.com/forums/southern-california/3480263-american-heritage-performance-review.html http://www.corvetteforum.com/forums/c6-z06-discussion/3527175-gmpp-ls7-cylinder-head-replacement-american-heritage.html http://www.corvetteforum.com/forums/c6-z06-discussion/3478925-new-first-time-corvette-owner-american-heritage-experience.html http://www.corvetteforum.com/forums/southern-california/3503825-another-thumbs-up-for-american-heritage.html http://www.corvetteforum.com/forums/southern-california/3523936-thanx-to-american-heritage-performace.html http://ls1tech.com/forums/western-members/1709968-american-heritage-performance-harbor-city-review.html http://www.thirdgen.org/forums/southern-california-area/681384-american-heritage-performance-2-a.html Link to comment Share on other sites More sharing options...
y2krtaf Posted December 19, 2014 Share Posted December 19, 2014 Ted, count me in on your idea. My experience is you get what you pay for. This! Link to comment Share on other sites More sharing options...
Unreal Posted December 19, 2014 Share Posted December 19, 2014 Like I said, best of luck. Ferrara valves, or any of the valves are an option on the other "brand" of heads. Just have to ask for them. I'm sure you will be happy. Link to comment Share on other sites More sharing options...
1991 ZR1 Posted December 19, 2014 Share Posted December 19, 2014 I did a 12.20 in the 1/4 at 85 degrees on streets, want a sub 12, maybe this winter on a cool nite. Haven't run a 1 or 1.5 mile event. Bucket List in April Link to comment Share on other sites More sharing options...
Z O SICK Posted December 22, 2014 Share Posted December 22, 2014 Whoa, wait a minute. You mean to tell me there's issues with these LS7 heads lol. On a serious note, I had a shop out of Louisana do my heads on my first C6Z. I forgot the internal componets that were used (it's been a while) so maybe Joe can chime in but I didn't have any issues. I want to say I had a good 6000-8000 miles on those heads after the "fix" without any issues. Also, that car seems to be running great because it was sold in my local town. I can't speak personally for any of the shops out there but I've head WCCH does an excellent job. When the time comes, I'm going to have Joe @ CPR fix the heads on my current Z. However, I'm still undecied as to what all I want to do to them but I don't think you can go wrong with WCCH. To be honest, I'm sure there are other shops out there but why not go local if you can get the job done right. If you need any advice or shop recomendations, shoot me a PM. I can give you my experiences. Tony Link to comment Share on other sites More sharing options...
dbs1 Posted December 23, 2014 Share Posted December 23, 2014 I saw a few of your guys cars there, but didn't not get a chance to visit with you. I was running my 04 Z16. Had a best of 156+ and then had an issue with a flat front tire that sidelined me for the rest of the afternoon on Sat. I was running consistent 153-155 before the 156 and was going to try and see what other vehicles were running similar mph and ask them what kind of hp numbers they were making but got sidelined trying to fix my flat tire. Anyone have enough info on what other folks running in the 155 mph range had for hp and their weight? Just trying to get an idea of where I'm at so I have a better idea of what I need to be looking at for improvement. Thanks! Link to comment Share on other sites More sharing options...
joe@cpr.com Posted December 23, 2014 Share Posted December 23, 2014 What's your hp level now and what mods? Link to comment Share on other sites More sharing options...
dbs1 Posted December 23, 2014 Share Posted December 23, 2014 I'm running an 11:1 LS3 based 416 with LS3 intake and 90mm TB. Also ARH 1 7/8" headers with hi flow cats and x pipe, 3" to stock TI exhaust, but opened it up with elec cutouts at the event. Don't have cam specs, but I think I'm somewhere in the range of 500rwhp in a 3300lb (with driver) 04 Z06, stock 3.42 gears. Link to comment Share on other sites More sharing options...
Desertdawg Posted December 23, 2014 Share Posted December 23, 2014 A flat front tire that sidelined me for the rest of the afternoon on Sat.! Damn, I wish you would have come over, I could have helped you get that fixed in town... We lined up together once after noon, and yep, you walked away from me too. Link to comment Share on other sites More sharing options...
Ted Y Posted December 23, 2014 Share Posted December 23, 2014 I'm running an 11:1 LS3 based 416 with LS3 intake and 90mm TB. Also ARH 1 7/8" headers with hi flow cats and x pipe, 3" to stock TI exhaust, but opened it up with elec cutouts at the event. Don't have cam specs, but I think I'm somewhere in the range of 500rwhp in a 3300lb (with driver) 04 Z06, stock 3.42 gears. I've always wanted electric cutouts. Do they work well? Link to comment Share on other sites More sharing options...
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