View Poll Results: Which set of heads?
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Broken PRC ls6 heads... What to replace with? MS3 Cam
09-10-2008 | 01:43 PM
#22
09-10-2008 | 07:45 PM
#24
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From: Burbank, SoCal
I got a really good deal on heads/cam/kooks LTs/intake/underdrive pulley and basically everything needed to the swap from a board member. Lets just say the whole set-up cost me less than a set of TFS "as cast" heads. The only other real things I needed were lifters, injectors, and that beautiful tune Job that George(12secSS) did for me.
TSP made it up to me on the replacement heads. They werent completely free... But to good to pass up, and with a warranty this time.
09-10-2008 | 11:45 PM
#26
Not sure about the orig flow numbers, their new stg1 ls1 heads are like 305(intake) @ .600 lift.
I got a really good deal on heads/cam/kooks LTs/intake/underdrive pulley and basically everything needed to the swap from a board member. Lets just say the whole set-up cost me less than a set of TFS "as cast" heads. The only other real things I needed were lifters, injectors, and that beautiful tune Job that George(12secSS) did for me.
TSP made it up to me on the replacement heads. They werent completely free... But to good to pass up, and with a warranty this time.
I got a really good deal on heads/cam/kooks LTs/intake/underdrive pulley and basically everything needed to the swap from a board member. Lets just say the whole set-up cost me less than a set of TFS "as cast" heads. The only other real things I needed were lifters, injectors, and that beautiful tune Job that George(12secSS) did for me.
TSP made it up to me on the replacement heads. They werent completely free... But to good to pass up, and with a warranty this time.
You know I got your back Mark when you are ready. 
09-11-2008 | 12:00 AM
#28
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You know it George!
I'll probably end up getting it re-dyno'd to after we get everything done, I want to see any differences these heads make. I remember my LS6 heads made slightly more than Billy's 5.3 heads, and he had a fast 90/90 on it.
So even if it hurts me a little, no biggy. So long as I get some more mid range torque out of it!
I'll probably end up getting it re-dyno'd to after we get everything done, I want to see any differences these heads make. I remember my LS6 heads made slightly more than Billy's 5.3 heads, and he had a fast 90/90 on it.
So even if it hurts me a little, no biggy. So long as I get some more mid range torque out of it!
09-11-2008 | 12:09 AM
#30
There is not enough material, that is way too thin esp. for dbl springs and high revving. Manufacturer should hook you up with a great deal on a revised casting. Those heads are junk.
09-11-2008 | 12:25 AM
#31
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From: BFE
Sooo my PRC stage 1 ls6 heads decided to take a nose dive. One of the rocker collums broke and opened up the intake port to the rest of the head lol.
So I'm trying to decide which heads to replace these with. I'm HOPING TSP will throw me a bone as they told me these were from a bad batch in 05, they arent going to send me free heads or anything but you know some gaskets and free shipping would be great!
Basically I need to know the real differences between the stg 2.5 5.3 heads they offer, and the stg 1 ls6 heads(Much revised since my version) they offer now.
I've done my searching and what not, I want to know if people are making more low end torque out of the 5.3 heads, or more power across the whole board including peak?
Or is there another budget head out there that I should be considering? Keep in mind this is a bang for the buck job, I already bought heads once, I wasn't planning on buying the same heads again to replace them. Nor to I want to spend 2k on a set of non-GM castings.
Anyone had any luck with the trick flow as cast heads? Flow numbers? Dyno sheets? If I'm lucky a dyno sheet with an MS3 cam?
Thanks in advance.
-Mark
So I'm trying to decide which heads to replace these with. I'm HOPING TSP will throw me a bone as they told me these were from a bad batch in 05, they arent going to send me free heads or anything but you know some gaskets and free shipping would be great!
Basically I need to know the real differences between the stg 2.5 5.3 heads they offer, and the stg 1 ls6 heads(Much revised since my version) they offer now.
I've done my searching and what not, I want to know if people are making more low end torque out of the 5.3 heads, or more power across the whole board including peak?
Or is there another budget head out there that I should be considering? Keep in mind this is a bang for the buck job, I already bought heads once, I wasn't planning on buying the same heads again to replace them. Nor to I want to spend 2k on a set of non-GM castings.
Anyone had any luck with the trick flow as cast heads? Flow numbers? Dyno sheets? If I'm lucky a dyno sheet with an MS3 cam?
Thanks in advance.
-Mark
TSP was/is well aware of the issue and it happened way more than once. Your situation just happened to be delayed. They even revised their CNC program to reduce amount of material taken away during CNC from 230cc to 227 cc to avoid this issue and re-enforced the rocker area.
You are actualy lucky to have lasted that long and with no other serious damage.
IMO TSP should send you an equal new set of heads (revised) because the fault is in their CNC program and not in the casting.
09-11-2008 | 12:33 AM
#32
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Niot to add spice to an allready hot dish, but..
TSP was/is well aware of the issue and it happened way more than once. Your situation just happened to be delayed. They even revised their CNC program to reduce amount of material taken away during CNC from 230cc to 227 cc to avoid this issue and re-enforced the rocker area.
You are actualy lucky to have lasted that long and with no other serious damage.
IMO TSP should send you an equal new set of heads (revised) because the fault is in their CNC program and not in the casting.
TSP was/is well aware of the issue and it happened way more than once. Your situation just happened to be delayed. They even revised their CNC program to reduce amount of material taken away during CNC from 230cc to 227 cc to avoid this issue and re-enforced the rocker area.
You are actualy lucky to have lasted that long and with no other serious damage.
IMO TSP should send you an equal new set of heads (revised) because the fault is in their CNC program and not in the casting.
They still DID help me out with the 5.3's, I don't want to say how much for their sake, but lets just say it was worth it at this point. I'm not gonna squeze free heads out of them. I worked in shops for 5 or 6 years and I know how business goes.
Thanks Pred, I apreciate your help with all of this. But I can't help but ask, is it me or is there some animosity between you guys?
09-11-2008 | 09:42 AM
#33
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From: BFE
If you are satisfied,that is what matters, I didn't pay attention that you were not the original owner. I guess you are right. I withdraw my comment then.
We have some history, mostly politics, had to do with opinion differences. had some issues as a customer as well (in the begining of PRC birth, when the operation was in someones garage)
But I have no beef with them, just when I see something not right, I voice my opinion. I am not behind the maketing bandwagon.
We have some history, mostly politics, had to do with opinion differences. had some issues as a customer as well (in the begining of PRC birth, when the operation was in someones garage)
But I have no beef with them, just when I see something not right, I voice my opinion. I am not behind the maketing bandwagon.
09-11-2008 | 10:15 AM
#34
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From: RainbowCity,Alabama
If you are satisfied,that is what matters, I didn't pay attention that you were not the original owner. I guess you are right. I withdraw my comment then.
We have some history, mostly politics, had to do with opinion differences. had some issues as a customer as well (in the begining of PRC birth, when the operation was in someones garage)
But I have no beef with them, just when I see something not right, I voice my opinion. I am not behind the maketing bandwagon.
We have some history, mostly politics, had to do with opinion differences. had some issues as a customer as well (in the begining of PRC birth, when the operation was in someones garage)
But I have no beef with them, just when I see something not right, I voice my opinion. I am not behind the maketing bandwagon.
JFYI, PRC was never in someones garage. Where did that come from?
09-11-2008 | 12:46 PM
#35
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From: BFE
PRC was a separate entity that TSP used to subcontract to. I forgot his name. That is before TSP brought the operation in house, that was in the very begining, I own a set of those heads. The garage meaning garage shop. There was many issues about quality. Mine had a blocked water passage and a retainer lodged in a runner. Not to mention my heads never flowed the advertised 300 cfm.
But that is past and a long time ago. TSP has gone ages forward now, the minute they brought PRC inhouse.
As I said I have no beef with them.
This week, I dissagree with the AFR comparison to their 215 5.3L heads, the thead speaks for itself and in another, running 59c 5.3s, .040 gasket and TR224 112 (too much DCR)
Both threads tech related and no bashing (from my part at least).
But that is past and a long time ago. TSP has gone ages forward now, the minute they brought PRC inhouse.
As I said I have no beef with them.
This week, I dissagree with the AFR comparison to their 215 5.3L heads, the thead speaks for itself and in another, running 59c 5.3s, .040 gasket and TR224 112 (too much DCR)
Both threads tech related and no bashing (from my part at least).
09-11-2008 | 02:43 PM
#36
Joined: May 2005
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From: Bossier city,LA barksdale AFB
I have installed prc stage 2.5 5.3 heads with ms3 and T2 cams on a few cars and they and all make 440-470whp A4-m6. One of the A4 cars put done 441whp on a mustang dyno and a yank ss3600 stall!
09-11-2008 | 02:51 PM
#37
Predator: That's incorrect. PRC has never been in a garage. It didn't always have its built building and had to share shop space in the back with the techs. But they never machined a single head or part at a home. They have been on our premises since day 1.
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09-11-2008 | 03:30 PM
#39
Got it. Sorry I mis-read that!
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Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
Largest Stocking Distributor of LS-x Engines / CHECK OUT OUR NEW WEBSITE!
COMP - FAST - PACESETTER - DIAMOND RACING - EAGLE SPECIALTY PRODUCTS - CALLIES - COMETIC GASKETS
RAM CLUTCHES - MOSER ENGINEERING - KOOK'S HEADERS - ARP - GM BOLTS AND GASKETS - MSD - NGK
POWERBOND - ASP - AND MORE!
09-12-2008 | 02:59 AM
#40
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From: BFE
). That is where PRCs came from and due to serious delays and some quality issues (like mine), Jason (IIRC) pulled the operation in-house to TSP). He also hired a guy (forgot his name), who was a SAM graduate (pretty good at what he does) and PRC took off in a brand new and exciting direction.
Come to think about it, TVWilkes you should know, back in the days when Gomer went 10s with a PRC set and pretty much set the motion for a good alternative to Patriot heads (only budget deal then).
Man that all brings back memories
Last edited by PREDATOR-Z; 09-12-2008 at 03:37 AM.