LS3 crate motor differences -- E-ROD vs LS376/525
LS3 crate motor differences -- E-ROD vs LS376/525 I apologize if this is not the section for this. If there is a more appropriate section, it didn't jump out at me when I looked through all the different sections here.
I should not be forced to ask this question to strangers on the internet, but the dealerships parts depts. are unable to answer these questions.
It seems the LS376/525 crate engine (PN#19432418) is not getting delivered by GM anymore, I have been waiting on one since February, that is no exaggeration.
Dealership says they can get met an LS3 E-ROD (PN#19421057) this week.
My question is:
Apart from the ASA camshaft, valve springs, and the calibration programmed into the ECU/PCM....is there any other difference between the two crate motor packages?
I don't care about oil pan, accessories, exhaust, that is all custom in my application.
I am thinking of just taking the E-ROD, swapping in an identical-spec camshaft and valve springs myself and hooking it up to the ECU/PCM for the LS376/525 (PN#19354332).
My concern is whether or not there are other non-advertised differences such as intake, injectors, etc.... that I need to account for to make this workaround successful.
If you have experience with these two crate engines from Chevy Performance, I would greatly appreciate your input.
I should not be forced to ask this question to strangers on the internet, but the dealerships parts depts. are unable to answer these questions.
It seems the LS376/525 crate engine (PN#19432418) is not getting delivered by GM anymore, I have been waiting on one since February, that is no exaggeration.
Dealership says they can get met an LS3 E-ROD (PN#19421057) this week.
My question is:
Apart from the ASA camshaft, valve springs, and the calibration programmed into the ECU/PCM....is there any other difference between the two crate motor packages?
I don't care about oil pan, accessories, exhaust, that is all custom in my application.
I am thinking of just taking the E-ROD, swapping in an identical-spec camshaft and valve springs myself and hooking it up to the ECU/PCM for the LS376/525 (PN#19354332).
My concern is whether or not there are other non-advertised differences such as intake, injectors, etc.... that I need to account for to make this workaround successful.
If you have experience with these two crate engines from Chevy Performance, I would greatly appreciate your input.
TECH Fanatic
Joined: Jan 2022
Posts: 1,034
Likes: 468
From: Seattle
The E-ROD Package Includes:
6.2-liter LS3 crate engine, rated at 430 horsepower and 424 lb-ft of torque. This is the same base engine found in the Camaro SS and Corvette. (Additional engine choices including the LS7 and LSA are being planned. )
GMPP LS3 engine wiring harness
GMPP engine control module
Exhaust manifolds
Catalytic converters
Oxygen sensors and sensor bosses
Fuel tank evaporative emissions canister
Mass airflow sensor and sensor boss
Accelerator pedal (for use with the LS3's electronic throttle)
Air filter
Instruction manual
I would think it's just the extra fuel and air sensors and ECU programming.
Have you called around on that 19432418? Texas Speed or someplace like ProTouringStore might have one.
6.2-liter LS3 crate engine, rated at 430 horsepower and 424 lb-ft of torque. This is the same base engine found in the Camaro SS and Corvette. (Additional engine choices including the LS7 and LSA are being planned. )
GMPP LS3 engine wiring harness
GMPP engine control module
Exhaust manifolds
Catalytic converters
Oxygen sensors and sensor bosses
Fuel tank evaporative emissions canister
Mass airflow sensor and sensor boss
Accelerator pedal (for use with the LS3's electronic throttle)
Air filter
Instruction manual
I would think it's just the extra fuel and air sensors and ECU programming.
Have you called around on that 19432418? Texas Speed or someplace like ProTouringStore might have one.
Yep, I read all that on Chevy's site. The same site with obsolete PN's. I need a definitive answer. I simply cannot trust old marketing material at this point. I am trying to spend $10k this week, preferably yesterday.
Unfortunately Texas Speed, LME, Blueprint, Lingenfelter, and anyone else I have spoken with are all massively overkill in design and price for my purposes.
Unfortunately Texas Speed, LME, Blueprint, Lingenfelter, and anyone else I have spoken with are all massively overkill in design and price for my purposes.
Contact https://protouringstore.com/
He always has engines in stock. Great prices and Customer Services.
He always has engines in stock. Great prices and Customer Services.
Contact https://protouringstore.com/
He always has engines in stock. Great prices and Customer Services.
He always has engines in stock. Great prices and Customer Services.
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So this is an interesting point, thanks.
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
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So this is an interesting point, thanks.
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
A friend had the same era GM Hot Cam back in the day ~1999. It was a poor driving & underperformed even then compared the ~.570+ lift, better lobe design cams of that era. The ASA has all the worse traits of the GM Hot Cam plus more.
If you can find a good set of used SLP 1.85 rockers plus appropriate valve springs the lousy lift can be addressed...but it will still be harder to tune etc than a better newer cam etc.
FWIW - in the mid 220 to mid 230's...here are a few of the many better cam choices with similar duration etc.
Tick Performance "SNS" torqueMAX Stage 2
227/235 | .618"/.605" | LSA110+3
Engine Performance Systems (EPS)
226/234 ~.604/~.604 113+2
Lingenfelter Performance Engineering GT12
227/235 .614/.621 on a 115
Last edited by 99 Black Bird T/A; Jul 26, 2022 at 01:37 PM.
TECH Fanatic
Joined: Jan 2022
Posts: 1,034
Likes: 468
From: Seattle
TECH Senior Member
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
So this is an interesting point, thanks.
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
I have been browsing a bit and have seen some of the critiques of this "ASA cam"...but what I am reading sound a lot more like just an excessively conservative tune on the PCM/ECU that GM offers for the engine.
Will look much closer into this. Thanks
Another well known member of these forums, Project GatTagO, swapped out an ASA cam for this one and is extremely satisfied.
Last edited by G Atsma; Jul 26, 2022 at 02:47 PM.