GM LS3 LS376/525 Crate Motor - LS1TECH - Camaro and Firebird Forum Discussion

Notices
Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

GM LS3 LS376/525 Crate Motor

Old 06-07-2018, 08:27 PM
  #1  
Teching In
Thread Starter
 
Join Date: Aug 2012
Posts: 45
Default GM LS3 LS376/525 Crate Motor

For those who have the LS376/525, what did your final dyno numbers end up being (and mods when dynode)?

Do you have any 1/4 Mile times?

How are are the temps on a road course after 20 minutes?

How is the drivability in traffic?

How is the seat of the pants feel compared to an LS1?
Norbit2 is offline  
Old 06-10-2018, 06:52 PM
  #2  
10 Second Club
 
big hammer's Avatar
 
Join Date: May 2009
Location: over dere
Posts: 2,988
Default

Would be awesome
big hammer is online now  
Old 06-11-2018, 08:04 PM
  #3  
Teching In
Thread Starter
 
Join Date: Aug 2012
Posts: 45
Default

To the Top
Norbit2 is offline  
Old 06-13-2018, 05:46 PM
  #4  
Teching In
Thread Starter
 
Join Date: Aug 2012
Posts: 45
Default

No one has this motor?
Norbit2 is offline  
Old 06-13-2018, 06:06 PM
  #5  
12 Second Club
 
Utinator's Avatar
 
Join Date: Dec 2017
Location: Virginia
Posts: 229
Default

I wish I did. That would be awesome in a Gen 4.
Utinator is offline  
Old 06-13-2018, 07:52 PM
  #6  
TECH Fanatic
iTrader: (5)
 
lees02WS6's Avatar
 
Join Date: Mar 2004
Location: Lansdale, PA
Posts: 1,326
Default

As soon as the tune is finished I'll post up impressions
lees02WS6 is online now  
Old 06-13-2018, 11:07 PM
  #7  
TECH Fanatic
iTrader: (2)
 
Join Date: Apr 2006
Location: Pittsburgh
Posts: 1,978
Default

Bobby Stipkovic was making about 520 rwhp on a 416 stroker LS3 with unported stock LS3 heads. Best time was 40.45 1/4 mile.
wannafbody is online now  
Old 06-14-2018, 09:30 AM
  #8  
"I MAID THEESE"
iTrader: (2)
 
Mavn's Avatar
 
Join Date: Jul 2011
Location: Houston
Posts: 924
Default

Originally Posted by wannafbody View Post
Bobby Stipkovic was making about 520 rwhp on a 416 stroker LS3 with unported stock LS3 heads. Best time was 40.45 1/4 mile.
Bobbys car does not help the OP one bit lmfao
Mavn is online now  
Old 06-16-2018, 06:53 PM
  #9  
On The Tree
iTrader: (1)
 
Toes's Avatar
 
Join Date: Oct 2006
Location: Colorado
Posts: 171
Default

Damnit Bobby!
Toes is offline  
Old 06-17-2018, 11:59 PM
  #10  
10 Second Club
iTrader: (30)
 
zzracer's Avatar
 
Join Date: Oct 2009
Location: Denton, NC
Posts: 198
Default

Originally Posted by Norbit2 View Post
For those who have the LS376/525, what did your final dyno numbers end up being (and mods when dynode)?

Do you have any 1/4 Mile times?

How are are the temps on a road course after 20 minutes?

How is the drivability in traffic?

How is the seat of the pants feel compared to an LS1?
I put a hot cam in my wife's 2010 SS convertible which is basically what that engine is. It made 421 rwhp and ran 8.21 @ 91 with the stock transmission tune in it and stock converter. Have tuned the transmission now but haven't ran it again but feels way better.
zzracer is online now  
Old 06-18-2018, 03:25 PM
  #11  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 7,831
Default

The Hot Cam gets 495HP crank, the ASA cam gets 525HP crank. Your wife's car is down 30HP from the ASA cam which is in the LS376-525
G Atsma is online now  
Old 06-19-2018, 01:42 AM
  #12  
TECH Fanatic
iTrader: (7)
 
Join Date: Apr 2013
Location: S.A., TX
Posts: 1,716
Default

Originally Posted by G Atsma View Post
The Hot Cam gets 495HP crank, the ASA cam gets 525HP crank. Your wife's car is down 30HP from the ASA cam which is in the LS376-525
Exactly!

BTW.....a friend of mine put the same engine in his '96 Impala. He pulled after about 3500 miles and installed a BTR cam with better drivability and more power as a result.

If it were my money (and I know it's not) I would get a base LS3 crate and do a cam/valve spring swap BEFORE it gets installed in the car.

Jus' sayin'.....

KW
KW Baraka is offline  
Old 06-19-2018, 09:21 AM
  #13  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 7,831
Default

Originally Posted by KW Baraka View Post
If it were my money (and I know it's not) I would get a base LS3 crate and do a cam/valve spring swap BEFORE it gets installed in the car.

KW
Exactly! Again... lol. There are SO many cams that are better than those old GM grinds. But, it's not my money either..... lol
G Atsma is online now  
Old 06-19-2018, 08:40 PM
  #14  
10 Second Club
iTrader: (30)
 
zzracer's Avatar
 
Join Date: Oct 2009
Location: Denton, NC
Posts: 198
Default

I forgot about the asa cam. Your right.
zzracer is online now  
Old 06-20-2018, 07:57 AM
  #15  
10 Second Club
 
lazerlemonta's Avatar
 
Join Date: Feb 2004
Location: VA
Posts: 335
Default

Originally Posted by KW Baraka View Post
Exactly!

BTW.....a friend of mine put the same engine in his '96 Impala. He pulled after about 3500 miles and installed a BTR cam with better drivability and more power as a result.

If it were my money (and I know it's not) I would get a base LS3 crate and do a cam/valve spring swap BEFORE it gets installed in the car.

Jus' sayin'.....

KW
LOL this is how the general removes surplus parts off the shelf. They should just give you a FREE asa cam with every LS crate purchase. WS6 store has the hot cam market cornered lmfao
lazerlemonta is offline  
Old 06-20-2018, 10:40 AM
  #16  
TECH Senior Member
 
Join Date: Jun 2016
Location: Central Cal.
Posts: 7,831
Default

What GM should do is regrind EVERY Hot Cam and ASA cam in stock to .600" lift, then sell them with a set of necessary(due to smaller base circle..) longer pushrods and a good set of springs as a total kit. They will then fly off the shelves....
G Atsma is online now  
Old 06-26-2018, 02:02 PM
  #17  
Teching In
Thread Starter
 
Join Date: Aug 2012
Posts: 45
Default

So, after all that, does anybody have a stock crate 525 motor in their car?
Norbit2 is offline  
Old 06-26-2018, 07:30 PM
  #18  
12 Second Club
 
Utinator's Avatar
 
Join Date: Dec 2017
Location: Virginia
Posts: 229
Default

It looks like lees02WS6 does. He said he just has to get it tuned. I'm anxious to see what it does.
Utinator is offline  
Old 06-26-2018, 11:54 PM
  #19  
10 Second Club
 
big hammer's Avatar
 
Join Date: May 2009
Location: over dere
Posts: 2,988
Default

The old grinds are pewp in an ls3 imo
big hammer is online now  
Old 06-27-2018, 09:07 PM
  #20  
TECH Addict
iTrader: (13)
 
Join Date: Feb 2005
Location: Houston, TX
Posts: 2,392
Default

Old GM grinds are not for max power, never were. they were designed to provide a nice bump in power with low impact to drivability, longevity, spring life, ROI, and the like. IiRC, you still get a warranty on a crate with these cams. Different purpose and constraints than better/custom cams.
jmilz28 is offline  

Thread Tools
Search this Thread
Quick Reply: GM LS3 LS376/525 Crate Motor


Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: