LT1-LT4 Modifications 1993-97 Gen II Small Block V8

New Timing Chain-Using Stock Water Pump

Thread Tools
 
Search this Thread
 
Old 03-27-2015, 06:31 PM
  #1  
On The Tree
Thread Starter
 
Casey96SS's Avatar
 
Join Date: Apr 2013
Location: Utica, IL
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts

Default New Timing Chain-Using Stock Water Pump

Hi all! I am in the middle of doing a heads and cam swap. Need to order a new timing set. I plan on keeping the stock water pump for now. Car will probably around 400 RWHP.

I think I read this one is like a stock replacement but a little tighter:
http://www.summitracing.com/parts/clo-c-3228

I know the stock chain is pretty good. Are there any stronger options when using the stock water pump?

Thanks for any input or suggestions!
Old 03-28-2015, 06:39 AM
  #2  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,006
Received 518 Likes on 374 Posts

Default

Yep, but it will cost you:

http://www.jegs.com/p/Chevrolet-Perf...53867/10002/-1
Old 03-28-2015, 07:03 AM
  #3  
11 Second Club
iTrader: (1)
 
96capricemgr's Avatar
 
Join Date: Sep 2004
Posts: 11,975
Likes: 0
Received 12 Likes on 12 Posts

Default

Honestly I have seen more reports of the LT4 set breaking than stock.

There is an oversized lower sprocket for the stock chain to tighten it up.
Cloyes makes it I don't remember the PN offhand but have posted it in the past.
Old 03-28-2015, 09:25 AM
  #4  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,006
Received 518 Likes on 374 Posts

Default

I've never read of one breaking. I had one with a GM847 cam for 10K miles and it was as tight as the day it was put in. Was kind of weird having so little clearance between the cam and crank gears since the crank gear was oversized. Probably around .030 IIRC.
Friend of mine had a stock timing set with stock internals, slammed on the brakes (with no clutch) and broke his. Car had around 40 to 50K miles at the time it happened.
Old 03-28-2015, 09:31 AM
  #5  
On The Tree
Thread Starter
 
Casey96SS's Avatar
 
Join Date: Apr 2013
Location: Utica, IL
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts

Default

The Extreme Duty set look like what I was looking for, but I do not think I want to spend that much.

Is it better to runner the bigger sprocket and have the chain a little tighter? It seems like you would want it a little tighter, but I know chains are supposed to have some amount of slack in them. Any opinions?
Old 03-28-2015, 10:25 AM
  #6  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,006
Received 518 Likes on 374 Posts

Default

The stock chain setup has far too much slop. The one you linked would work fine for what you're doing, IMO.
Old 03-28-2015, 10:38 AM
  #7  
12 Second Club
iTrader: (7)
 
guppymech's Avatar
 
Join Date: Jan 2010
Location: Chicagoland
Posts: 1,621
Likes: 0
Received 1 Like on 1 Post

Default

I've read some threads of folks having trouble with non GM cam sprockets meshing too tightly with the WP drive and they whine. You can run a stock cam gear/chain with the oversize Cloyes crank gear for just a little more $ than the complete Cloyes set you linked.
Link to info on oversize crank sprocket, see post 22 from BOLO.
https://ls1tech.com/forums/lt1-lt4-m...l#post14738607

Last edited by guppymech; 03-28-2015 at 10:51 AM.
Old 03-29-2015, 09:00 AM
  #8  
On The Tree
Thread Starter
 
Casey96SS's Avatar
 
Join Date: Apr 2013
Location: Utica, IL
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts

Default

Anyone have any idea what the difference is between the C-3039 and the C-3228? The gears look different in the pics.

http://www.summitracing.com/parts/cl...9/applications

http://www.summitracing.com/parts/clo-c-3228

Seems like I have read about more people running the C-3039.
Old 03-29-2015, 03:50 PM
  #9  
Village Troll
iTrader: (2)
 
SS RRR's Avatar
 
Join Date: Oct 2002
Location: Jackstandican
Posts: 11,006
Received 518 Likes on 374 Posts

Default

If you look at the applications for both, it would appear one is for a non-vented opti. The pic you see may not reflect what the actual product is.
Old 03-30-2015, 08:37 AM
  #10  
TECH Fanatic
 
93M6Formula's Avatar
 
Join Date: Aug 2008
Location: Nebraska
Posts: 1,740
Likes: 0
Received 2 Likes on 2 Posts

Default

The first one you linked is for late '94-'97 LT1s with a vented Opti. The second one is the '92-'94 spline drive Opti. For your '96 you would need the 3039.
Old 03-30-2015, 01:12 PM
  #11  
On The Tree
Thread Starter
 
Casey96SS's Avatar
 
Join Date: Apr 2013
Location: Utica, IL
Posts: 179
Likes: 0
Received 0 Likes on 0 Posts

Default

Great, thanks for the help guys! I am going to give the 3039 a try.



Quick Reply: New Timing Chain-Using Stock Water Pump



All times are GMT -5. The time now is 06:54 PM.