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Does anyone know the spec on the competition cam used in phase 2x6 ZL-1. I believe the heads are TEA phase 2 flowing 320 @ 600". Had it Dyno Tuned by Calibrated by Karger in Denton Texas, it made 439 rwhp. Justifying the 500 hp sticker on the hood. I am sure GMMG, Matt Murphy, Mike Carnahan do but that was 18 years ago.
This is car # 42 of 69 made 2002 ZL-1 Camaro Supercar. GMMG made 499 special cars, including Dick Harrell, DEI, ZL-1, 2000 Berger,2001 Berger, 2002 Berger, Hot Rod Edition, Performance Edition, Tom Henry Racing, CETA Blackbird, 35th Anniversary,
Year One Edition, Formula Edition, Year One Formula, Blackbird edition.
Last edited by Ronald Morgan; 11-23-2020 at 06:29 PM.
This is car # 42 of 69 made 2002 ZL-1 Camaro Supercar. GMMG made 499 special cars, including Dick Harrell, DEI, ZL-1, 2000 Berger,2001 Berger, 2002 Berger, Hot Rod Edition, Performance Edition, Tom Henry Racing, CETA Blackbird, 35th Anniversary,
Year One Edition, Formula Edition, Year One Formula, Blackbird edition.
Pull a valve cover and measure lift. If it's .525 they might have just stuck a GM LS Hot Cam in it and called it good. Is there any lope to it?
Looks like they came with 5 different cams to choose from
I originally posted that it would be far easier to just look for a current cam if you're looking for a cam to make the power that car did. If you're looking to know the exact cam in that exact car looks like you need the original build sheet, the original owner to tell you what's in it, or to contact GMMG. Or degree it with a degree wheel to figure it out.
Originally Posted by Vengeance Racing
Thought I would clear this up for everybody interrested in these packages and what they come with exactly.
Phase II 435HP package (no longer avalible)
Phase IIX 475HP package
5.3 CNC ported and hand polished race heads (flow over 315cfm and 260cfm), cam (customer choice of about 5 different ones depends on driver and needs), Headers choice TTS or SS Dynatechs with cats, Hardened Pushrods, new gasket-bolts, Lightweight Flywheel, Red Valve Covers, LCA relo, Red Motorsports plugwires, NGK plugs, Red Powdercoated Brake Calipers, Different Lid stickers, documentation, GMMG window sticker Automatics get Yank TQ Converter (choice) and BM transcooler. Tuning and Install included
RWHP Range 420-450 auto slightly less due to driveline
Phase IIX6 Everything above except LS6 heads 10-15RWHP and TQ gain
Phase IIX6R Everthing above except ARP studs all around, ARP rod bolts, Notch Pistons for max camshafts. (Not recommend for daily driving or your wife) Revs to the moon for max HP.
We also offer all of our customers the ability to upgrade other parts of their cars as well like.
Subframes, Rollcages, Clutches, Bigger Brakes, Rims, Tires, And for guys who have the ***** 427 CI Big Cubes!!!!
We constantly change these packages to keep up with customer demands and when better parts are avalible and have been tested by us. And we test alot of stuff!!!
We try to build something that will last a long time and can go anywhere with reliable performance and value. Hope everyone likes their cars and hope this clears up any questions for you guys.
Phase I-
Whisper Air Lid
Upgraded MAF Housing
ASP Underdrive
Ported Exhaust Manifolds
GMMG Chambered Exhaust
Custom Programming VIA LS1 Edit (All that was available at the time)
ZL1 and Dick Harrell Camaros Phase I was an actual LS6 Crate Engine from GM
Phase II added
long tube Headers
Catted Y pipe
Upgraded Cylinder Heads Custom Camshaft
Hardened Pushrods
Ported Throttlebody
All advertised #s from GMMG were at the FLYWHEEL...
What is the difference between the Phase II and Phase IIX?The Phase 2 - 435hp package was the first name for our upgraded HP package, first done in 2000 on Matt Berger's 2000 Berger SS Camaro. It was basically new cam, headers, light machine work done to the LS1 heads with new springs and hardened push rods, red LS6 plug wires, computer/engine tuning, 4:10 rear end gears, etc. That package produced about 385hp to 390hp to the rear wheels. The Phase 2X replaced the Phase 2 package when we started using TEA to port our heads. We used the truck heads for the Phase 2X and with the major head work and much bigger and more aggressive Comp cam, we were now getting close to 425hp to 435hp to the rear wheels. At that point, I decided to change the name to 2X. Other than the new cylinder heads and cam and programming that went with that package, they were close to being the same. We also offer what we call a Phase 2X6 - 500hp package. That package uses the LS6 heads and an even more aggressive cam.
Looks like there were ever changing cams and there was a list of them that could be chose from as well.
Sorry for blowing up the post but found several interesting things on the subject and figured would share them all. All this stuff is copy pasted from LS1tech posts I found by putting "gmmg stage 2" into a google search.
Okay guys...................here is another response from Matt Murphy:
J. D.
Thanks again for your help. I had to run out of town and forgot to mention the LS6 ZL1 cars. And one other thing, January of 2004 is about when we started using the Phase 2X and 475hp setup. The ZL1 Phase 2 cars were very similar to the regular Phase 2 package in that the computer tuning wasn't very good at that time, and therefore the Phase 2 435hp LS1 cars and Phase 2 475hp ZL1's had light head work, and not very aggressive cams.
By late 2003 we were tuning our own stuff with LS1 edit and we finally had our own in-house dyno. With those two items, we were then able to jump the cams up and do some serious work on the heads by TEA. By mid 2004 we already had the P2X 475hp and P2X6 500hp package. The Dick Harrell Edition cars, like the ZL1 cars came with the LS6 motors in the base package and were rated 400hp, because Chevy asked me NOT to rate the ZL1's base package equal to or higher than their new Z06. I agreed to do that and we called the base cars 400hp. Now, because we were offering the P2X6 as an upgrade by 2004, there was never any thought to doing the Dick Harrell Edition cars with a 475hp Phase 2 package. It was going to be the Phase 2X6 package at 500hp.
We are now working on a new Phase 2 package and it will be a 525hp setup with the new Trick Flow heads and it is called a Phase 2XT. We still offer the Phase 2X6 500hp package, but have pretty much ended the Phase 2X 475hp package. I guess you can say, everything has a shelf life, and sooner or later things get better and replace the older setup.
Keep the questions coming . . . and I'll have to get a new password so I can reply as well on line.
All those posts were from 2003 to 2005 by the way.
Also I saw this in there
Originally Posted by hookerf14
Matt and the boys are pretty secretive about cam specs. Ron told me it was due to people second guessing the specs. Then a customer might want a different bump stick and insist on a different rocker ratio..etc... you get the drift.
BTW,
The Phase III C5R 600hp option was also available for the Performance Edition Z4C Anniversary cars. Matt himself built the first on a vert...the last Z4C vert GM built became #50 (the last number of this project) with a PIII package. It was on display at the Fbody Gathering 2003 in Bowling Green KY.
There are about 10 427 C5R equipped PE cars, including mine.
Thank you 00pooterSS, I had not seen some of those posts. I feel lucky to have purchased this car since 75% are in large collections. It rounds out my 4 gen collection. ZL-1, Z-28, SS..
Thank DietCoke for the idea to email Ron.
Ron is still being silent about the cam specs..From: Mike Carnahan <mike@vengeancepcm.com> Sent: Tuesday, November 24, 2020 8:35:54 AM To: Ron Morgan Subject: GMMG ZL-1 # 42
Ron, I am sorry I did not keep records of the exact builds.
I typically had 10-15 camshafts all with slight differences because I Cam Dr. every one of them.
The compression was changed but I would have to CC the head to figure it out and give you an exact number.
I am sorry I can not be of more use but that was a long time ago.
Enjoy the car they were a lot of fun.
All I could find out, it was a special ground cam from Competition Cams.
Back in 2002-2004 I am sure a big cam had a lift around .600" small by today standards.
The TEA work on the 243 casting were good up to .650".... intake flowed 320 cfm @ .600'. Good stuff for 2002
11-22-2020, 12:42 PM
ZL-1 LS-6 Phase 2x6 specs 
