LT1-LT4 Modifications 1993-97 Gen II Small Block V8
View Poll Results: GM 847 or CC306 cam??
GM 847
60
57.14%
CC306
45
42.86%
Voters: 105. You may not vote on this poll

Gm 847 Vs. Cc306

Thread Tools
 
Search this Thread
 
Old Dec 11, 2006 | 11:57 PM
  #1  
383_LT1_1295's Avatar
Thread Starter
On The Tree
 
Joined: Nov 2006
Posts: 181
Likes: 0
From: Corsicana, TX
Default Gm 847 Vs. Cc306

Okay guys. i have a bone stock 94 Z28 a4 camaro. It is going to be my daily driver. I just need some input on what camshaft would work best if my car is going to be a daily driver. thanks alot for the help guys.
Reply
Old Dec 12, 2006 | 12:33 AM
  #2  
nemanracing's Avatar
TECH Enthusiast
 
Joined: Jan 2005
Posts: 722
Likes: 0
From: Riverside, CA
Default

For daily driver on a stock car go CC306. Otherwise go GM 847!
Reply
Old Dec 12, 2006 | 12:57 AM
  #3  
TwoFast4Lv's Avatar
10 Second Club
20 Year Member
Photogenic
iTrader: (8)
 
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Default

I am thinking a baby cam 211/219
Reply
Old Dec 12, 2006 | 08:43 AM
  #4  
-PEPE-'s Avatar
11 Second Club
iTrader: (10)
 
Joined: Jun 2003
Posts: 2,298
Likes: 0
Default

you should do a search on here, there is a ton of data on both cams, with polls, just like this post, great info to help you make a decision.
Reply
Old Dec 12, 2006 | 11:34 AM
  #5  
Speed Density's Avatar
hashtagBMW
iTrader: (38)
 
Joined: Jul 2005
Posts: 6,572
Likes: 2
From: Boise, Idaho
Default

https://ls1tech.com/forums/showthrea...ighlight=GM847
Good Discussion On Custom Grinds and the 847

https://ls1tech.com/forums/showthrea...ighlight=GM847
Same question you asked.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Same question you asked again.

https://ls1tech.com/forums/showthrea...ighlight=GM847
A thread all about the 847.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Driveability with the 847.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Another thread about the 847.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Asking Were to buy and how the 847 is.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Biggest Cam for the LTx.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Same Question you asked.

https://ls1tech.com/forums/showthrea...ighlight=GM847
Drivability with the 847 again.

https://ls1tech.com/forums/showthrea...ighlight=GM847
And here is Brett trying to pawn off his 847.

Good Luck!

Tony.
Reply
Old Dec 12, 2006 | 12:11 PM
  #6  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

^^^ I think that pretty much takes care of the question.
Reply
Old Dec 12, 2006 | 01:23 PM
  #7  
TwoFast4Lv's Avatar
10 Second Club
20 Year Member
Photogenic
iTrader: (8)
 
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Default

I am still thinking Baby cam
Reply
Old Dec 12, 2006 | 01:48 PM
  #8  
-PEPE-'s Avatar
11 Second Club
iTrader: (10)
 
Joined: Jun 2003
Posts: 2,298
Likes: 0
Default

Originally Posted by TwoFast4Lv
I am still thinking Baby cam
what he said..if I knew then what I know now...custom grind all the way...the 847 is now like the Hotcam was 7 yrs ago....

baby cam in my book...but fine for a stock engine...of sorts
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 12, 2006 | 02:57 PM
  #9  
WS Sick's Avatar
TECH Fanatic
 
Joined: Jan 2004
Posts: 1,157
Likes: 1
From: Kingfisher Oklahoma
Default

I've experienced the GM 847 in both 350s and my 383, and I really like the cam, I know in either motor the idle is unmistakable...lol

I also know some people running the 306 and love it equally as well.

If you don't mind some irritation I'd get one of these cams and pass over the lesser ones.
Reply
Old Dec 12, 2006 | 05:43 PM
  #10  
speed_demon24's Avatar
11 Second Club
iTrader: (6)
 
Joined: Dec 2001
Posts: 4,609
Likes: 2
From: Ocala, FL
Default

I hope you don't have the stock stall if you're going to put one of these cams in.
Reply
Old Dec 12, 2006 | 09:23 PM
  #11  
383_LT1_1295's Avatar
Thread Starter
On The Tree
 
Joined: Nov 2006
Posts: 181
Likes: 0
From: Corsicana, TX
Default

Wow...thanks for all of the help guys! all of those links really helped. When i buy the cam im also getting all of the supporting mods im going to need. Definatley getting the heads ported and polished, new springs, retainers, hardened push rods, RR's, Locks, keys. Timing chain set, Throttle body, CAI, headers, new exhaust, stall. Well thanks again guys. This cam is going to be my christmas present to myself so i will let you guys know how it turns out. Hopefully it will be a nice little street
Reply
Old Dec 12, 2006 | 09:26 PM
  #12  
slick1851's Avatar
TECH Junkie
 
Joined: Nov 2003
Posts: 3,265
Likes: 1
From: CHITOWN
Default

Another follow the leader thread......Why dont you look into different cams? And talk to Bert or JOE O


LT1s need to starts doing new things....I know its proven and dont want to sound like a ***, but it would be good to get a custom cam
Reply
Old Dec 12, 2006 | 09:27 PM
  #13  
slick1851's Avatar
TECH Junkie
 
Joined: Nov 2003
Posts: 3,265
Likes: 1
From: CHITOWN
Default

Originally Posted by BRETTINATOR
what he said..if I knew then what I know now...custom grind all the way...the 847 is now like the Hotcam was 7 yrs ago....

baby cam in my book...but fine for a stock engine...of sorts

Thats exactly what im thinking, people get all caught up on one cam


It was the end all GOD Hot cam

And now its the 847
Reply
Old Dec 12, 2006 | 09:58 PM
  #14  
383_LT1_1295's Avatar
Thread Starter
On The Tree
 
Joined: Nov 2006
Posts: 181
Likes: 0
From: Corsicana, TX
Default

Originally Posted by slick1851
Another follow the leader thread......Why dont you look into different cams? And talk to Bert or JOE O


LT1s need to starts doing new things....I know its proven and dont want to sound like a ***, but it would be good to get a custom cam
Well i guess because i know its a good cam...i dont think that i really need to through down the extra dough on a custom grind cam since i have a stock motor. I dont plan on changing that for a while anyways. So im just taking other peoples advice from their experience. But once again i appreciate the help guys
Reply
Old Dec 12, 2006 | 10:12 PM
  #15  
darrell hoagland's Avatar
TECH Enthusiast
iTrader: (24)
 
Joined: Apr 2005
Posts: 538
Likes: 0
From: madisonville ky
Default

what cam you gonna go with
Reply
Old Dec 12, 2006 | 10:14 PM
  #16  
slick1851's Avatar
TECH Junkie
 
Joined: Nov 2003
Posts: 3,265
Likes: 1
From: CHITOWN
Default

Originally Posted by 383_LT1_1295
Well i guess because i know its a good cam...i dont think that i really need to through down the extra dough on a custom grind cam since i have a stock motor. I dont plan on changing that for a while anyways. So im just taking other peoples advice from their experience. But once again i appreciate the help guys
Its really worth it, you can talk to them and they can help you out with somthing your looking for....


Just trying to help
Reply
Old Dec 13, 2006 | 07:29 AM
  #17  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

Having a custom grind allows you to make good power and keep it within the rpm range of the stock block. You won't be able to rev the 847 or 306 to the rpm needed for max power too many times before you're having to rebuild. Some people do get lucky though.
Reply
Old Dec 13, 2006 | 07:39 AM
  #18  
-PEPE-'s Avatar
11 Second Club
iTrader: (10)
 
Joined: Jun 2003
Posts: 2,298
Likes: 0
Default

I can understand you wanting to pull something off the shelf and it's affordable at 200 bucks roughly, but for a couple hundred more the fine tuned longevity of a hands down better performing cam pays off. I can assure you'll want more once you get used to what the 847 can do. As for someone commenting on here about high rpms on the 847, well I'm no expert of sorts, don't claim to be but have NEVER seen anyone using it have any issues with high rpms, at all. But their installs like mine included running 100% new high performance matched valvetrain components. Only issue I ever had was breaking a CompR (known for their now bad unimproved redesign) and collapsing a spring as a result.

The End
Reply
Old Dec 13, 2006 | 08:20 AM
  #19  
Sweetred95ta's Avatar
Launching!
iTrader: (2)
 
Joined: Nov 2005
Posts: 215
Likes: 0
From: Arnold, MO
Default

Originally Posted by BRETTINATOR
As for someone commenting on here about high rpms on the 847, well I'm no expert of sorts, don't claim to be but have NEVER seen anyone using it have any issues with high rpms, at all. But their installs like mine included running 100% new high performance matched valvetrain components. sing a spring as a result. Only issue I ever had was breaking a CompR (known for their now bad unimproved redesign) and collapsing a spring as a result.

The End
I wasn't referring to the valve train, even though that is a very important part of the build. I was more referring to having to spin the cam to 'higher than the stock block was built to handle' rpm. Take it from someone that consistently spun a stock lower end to 6500 rpm, that it didn't take too long and the bearings gave out, spinning a rod and a main. The gm847, with stock heads, should peak ~6,000 rpm and adding shifting rpm, that's more than what the stock block was built to handle. Some people get lucky and run high rpm for many, many miles. I wasn't so lucky.
Reply
Old Dec 13, 2006 | 08:24 AM
  #20  
-PEPE-'s Avatar
11 Second Club
iTrader: (10)
 
Joined: Jun 2003
Posts: 2,298
Likes: 0
Default

Originally Posted by Sweetred95ta
I wasn't referring to the valve train, even though that is a very important part of the build. I was more referring to having to spin the cam to 'higher than the stock block was built to handle' rpm. Take it from someone that consistently spun a stock lower end to 6500 rpm, that it didn't take too long and the bearings gave out, spinning a rod and a main. The gm847, with stock heads, should peak ~6,000 rpm and adding shifting rpm, that's more than what the stock block was built to handle. Some people get lucky and run high rpm for many, many miles. I wasn't so lucky.
ahhhh...gotcha...don't feel bad I wasn't either...lasted a whopping two hours on mine...but they were a fun two hours with that 86000 mile engine. You are correct 6k was about the limit, guess I was lucky with the rebuilt engine but it still threw a rod year later...damdest thing too...leaving the BLOCKBUSTER doing 40mph and she puked her guts out and was in a coma for 2 years
Reply



All times are GMT -5. The time now is 12:03 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE