LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

GM 847 cam?

Thread Tools
 
Search this Thread
 
Old Jul 6, 2006 | 03:20 PM
  #1  
hozb817's Avatar
Thread Starter
Registered User
 
Joined: Jul 2003
Posts: 354
From: LAKE COUNTY
GM 847 cam?

ANY INPUTS ON THIS CAM GM PART # 12370847
LOOKS GOOD TO ME ESPECIALLY FOR TOP END POWER

http://www.gmpartsdirect.com/results.cfm
Old Jul 6, 2006 | 04:00 PM
  #2  
jsetzer's Avatar
Registered User
 
Joined: Feb 2004
Posts: 2,182
From: Moore OK
Re: GM 847 cam?

I like it.

There is plenty of drama to be found here as far as a cam being too big/small, so I won't get into that.

My biggest word of advice though would be about your bottom end. This is not a freakishly huge cam, but none the less you need to be prepared to spin it to 6500+. Which basically means if you are on a stock high mile bottom end you need a miracle.

It feels a little sluggish below 3k. But my tq curve on the dyno was flat pretty much all the way across. 4-5 it pulls pretty good. 5k+ it screams, so to really enjoy it you have to spin it.

People have made 360 cam only with the cam though.

Is this a track car or DD? A cam this big needs a decent amount of gear, and with a 3 speed I wouldn't want to drive it on the highway with 3.73s or 4.10s.
Old Jul 7, 2006 | 07:34 AM
  #3  
hozb817's Avatar
Thread Starter
Registered User
 
Joined: Jul 2003
Posts: 354
From: LAKE COUNTY
Re: GM 847 cam?

The car is mainly track driven, with weeked trips but not far distances, I have a 3000 Stall hopefully that might help with the sluggish below 3K, the car has 56K miles on it and has been running pretty strong, untill recently, I have timing issues, but the cam specs look promising and with a full head port job and LT4 port matched intake manifold I am sure to get great gains!
Old Jul 7, 2006 | 08:05 AM
  #4  
jsetzer's Avatar
Registered User
 
Joined: Feb 2004
Posts: 2,182
From: Moore OK
Re: GM 847 cam?

Go for it. Of the several I have tried, it is my favorite off the shelf cam.

When I say sluggish, it is still more power than stock, just you feel a harder pull up top than down low. Which is kinda obvious anyways with a larger cam.
Old Jul 7, 2006 | 08:09 AM
  #5  
Sweetred95ta's Avatar
Registered User
 
Joined: Sep 2002
Posts: 2,193
From: High Ridge, MO
Re: GM 847 cam?

Do a search and you will find anything and everything you want to know about this cam.
Old Jul 7, 2006 | 08:29 AM
  #6  
hozb817's Avatar
Thread Starter
Registered User
 
Joined: Jul 2003
Posts: 354
From: LAKE COUNTY
Re: GM 847 cam?

Originally Posted by jsetzer
Go for it. Of the several I have tried, it is my favorite off the shelf cam.

When I say sluggish, it is still more power than stock, just you feel a harder pull up top than down low. Which is kinda obvious anyways with a larger cam.
Well that is exactly what I am looking for, same low end power, greater top end power, my low end is awesome cutting 1.6 60's isnt too bad on stock suspension, so its looks like a good pick, thanx for the info!
Old Sep 17, 2006 | 11:44 AM
  #7  
AlwaysCode390's Avatar
Registered User
 
Joined: Jun 2005
Posts: 915
From: STL
Re: GM 847 cam?

Did you end up getting the cam? ---
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rideordie
LS1 Based Engine Tech
9
Nov 5, 2019 04:52 PM
alex5366
General 1967-2002 F-Body Tech
0
Feb 17, 2015 08:12 PM
Queens94z28
Parts For Sale
3
Dec 20, 2014 09:11 PM
Queens94z28
LT1 Based Engine Tech
5
Nov 20, 2014 06:03 PM




All times are GMT -5. The time now is 06:07 AM.