LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2.

***SweetS10V8*** · 12-31-2007, 11:43 AM

Hey guys, I thought I would share some of the information Ive gathered over time to help anyone that wants to get an idea the power difference between the major LSx based engines. I have yet to dyno a 6.0L LQ4 or LQ9. I will add them if I ever get the chance to.

All testing was done on the same dyno, all were automatics and basically stock.

***SweetS10V8*** · 12-31-2007, 01:11 PM

Note that the 4.8L is by far the lowest, it would probably take a lot of money in parts to make it back up to the 5.3Ls stock numbers.

Remembering there is practically no price difference between a 4.8L and a 5.3L. Go with the 5.3L!

Noremac · 12-31-2007, 01:22 PM

nice data there...

THEKING · 12-31-2007, 01:30 PM

so what are the peak numbers for the baseline 5.3l? and is this a mustang dyno?

02dime · 12-31-2007, 01:46 PM

thanks man that helps alot in my decision on what motor to go with

99,4.3vortec · 12-31-2007, 01:48 PM

so theres really not that much of a difference in power between the ls1 and 5.3?

***SweetS10V8*** · 12-31-2007, 01:55 PM

Quote: Originally Posted by 99,4.3vortec

so theres really not that much of a difference in power between the ls1 and 5.3?

Not a ton... Dollar for dollar I would take the 5.3L still between the 4.8L, 5.3L, and 5.7L. Overall I would take the 6.0L obviously.

***SweetS10V8*** · 12-31-2007, 02:02 PM

Quote: Originally Posted by THEKING

so what are the peak numbers for the baseline 5.3l? and is this a mustang dyno?

241hp @ 5300RPM and 264lbft @ 4200RPM on the 5.3L

These are all done on a Superflow dyno. The numbers all would be MUCH higher on a Dynojet.

02dime · 12-31-2007, 02:18 PM

and what was the 6.0 at for #s

***SweetS10V8*** · 12-31-2007, 02:24 PM

Quote: Originally Posted by 02dime

and what was the 6.0 at for #s

292HP @ 5500RPM and 317lbft @ 4300RPM

LS2Sonoma · 12-31-2007, 02:36 PM

hehe mines on top

what you havent included is the price.. it would be on top too

great info, thanks sweet!

Mr Peanut · 12-31-2007, 06:00 PM

great info, thanks

02dime · 12-31-2007, 07:14 PM

well from the #s and the price i can get the 5.3 i think i can give up some power

99,4.3vortec · 01-01-2008, 11:23 PM

i think i will be going with the 5.3 as well(really would love to have ls1 though)

horsepwraddict · 01-02-2008, 10:42 AM

not that it matters, but were these in stock vehicles (trucks, vettes, f-bodies ect.) or were they swapped s10s?

Just curious.

***SweetS10V8*** · 01-02-2008, 05:35 PM

They were all in stock vehicles, except the 6.0 was in my truck.

horsepwraddict · 01-03-2008, 12:42 AM

cool, just wondering.

The truck motors might actually make a little more rwhp in an s10 due to the lighter running gear. Cars are probably about the same.

NateZQ8 · 01-03-2008, 12:29 PM

And a t-56 might make a bit more than the slushbox 4l60e's

02dime · 01-04-2008, 05:36 PM

can you guys find #s on a 6.0 non LS2, just need comparisons against the 5.3

***SweetS10V8*** · 01-04-2008, 07:15 PM

Quote: Originally Posted by SweetS10V8

I have yet to dyno a 6.0L LQ4 or LQ9. I will add them if I ever get the chance to.

Numbers can vary a ton from dyno to dyno.....

02dime · 01-04-2008, 08:09 PM

sorry missed that , thanks for all the info you provide here sweet

RazorS10 · 01-04-2008, 10:35 PM

Income im actually going to buy a 5.3 but it will be bored to a 5.7 and then you can use a complete ls1 rotating assembly.

SMACKEDS10 · 01-09-2008, 01:27 PM

lol, i like how everyone doesnt like 4.8L's

I have one in my silvy that I took to get a dyno after my cam swap and it clocked in with 309rwhp. FYI: done on the 22's and a stall converter.

I'm no where near full bolt ons yet. I'm about to slap in a lq4 in the silvy and put the 4.8L in the s10.. So far the best i've done at the 1/8th track is 8.97@74mph just imagine if that was in a lighter s10 pickup

***SweetS10V8*** · 01-09-2008, 08:22 PM

Like I said, dynos vary greatly in the numbers they put out. To compare you need the same dyno, otherwise its just a number.

I could correct them to 400hp if I wanted to.

SMACKEDS10 · 01-11-2008, 12:17 AM

you are correct.. I just wanted to show that 4.8L's have potential too just like the bigger motors. Seems like they dont get enough respect but whatever.. The fact that you can swap everything over gives people so many options to go with when building a motor like the ls series v8 motors.

LS2Sonoma · 01-11-2008, 02:46 AM

i like the 4.8s... anyone want to give me one?

***SweetS10V8*** · 01-11-2008, 08:28 AM

Quote: Originally Posted by LS2Sonoma

i like the 4.8s... anyone want to give me one?

Sure, Ill pay all the shipping too. Just send your engine back to me in return, remembering Im being nice enough to pick up all the shipping charges...

***SweetS10V8*** · 01-11-2008, 08:38 AM

Quote: Originally Posted by SMACKEDS10

4.8L's have potential too just like the bigger motors. Seems like they dont get enough respect but whatever..

It has nothing to do with respect, it purely a potential factor. A 5.3, 5.7, or 6.0L will gain the same amount or better if they all had the same bolt ons.

This thread was purely to show people where their starting point would be when trying to decide which engine to buy Since most people buy factory pull outs and not built race engines. Making a smart desicion will get everyone the most HP/dollar.

2005lm7 · 01-12-2008, 01:25 AM

For you guys looking into a 4.8 or a 5.3 I know the 05 and newer model lr4/lm7 mills were changed to a fully floating piston with locks. Probably dont mean much but I have an 05 silvy with the 5.3 and it has never had the infamous piston slap on cold start or the spark knock sound on warm start issues.

***SweetS10V8*** · 01-12-2008, 02:26 AM

And the newer 5.3Ls come with the #243 heads (LS6/LS2) w/ 210cc runners but most likely without the lightened valves though.

SMACKEDS10 · 01-12-2008, 10:33 PM

yep your referring about the 5.3L H.O. right? I have one thats for sale..

***SweetS10V8*** · 01-13-2008, 12:25 AM

No, I have an iron block 5.3L at work with 243 heads.

12-31-2007, 01:22 PM	#3
Noremac damned 4banger Age: 19 Join Date: May 2006 Posts: 5,344 Location: Jonesboro Arkansas User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. nice data there...
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12-31-2007, 01:30 PM	#4
THEKING More Go then Show Age: 23 Join Date: Mar 2004 Posts: 1,110 Location: Scottsdale, AZ User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. so what are the peak numbers for the baseline 5.3l? and is this a mustang dyno?
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12-31-2007, 01:46 PM	#5
02dime big pimpin' Age: 26 Join Date: Jan 2006 Posts: 777 Location: outside edmonton alberta User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. thanks man that helps alot in my decision on what motor to go with
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12-31-2007, 01:48 PM	#6
99,4.3vortec you noo get dis Age: 20 Join Date: Feb 2007 Posts: 222 Location: Kingsland, GA User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. so theres really not that much of a difference in power between the ls1 and 5.3?
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12-31-2007, 02:18 PM	#9
02dime big pimpin' Age: 26 Join Date: Jan 2006 Posts: 777 Location: outside edmonton alberta User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. and what was the 6.0 at for #s
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12-31-2007, 02:36 PM	#11
LS2Sonoma Registered User Age: 26 Join Date: Jun 2006 Posts: 463 Location: edmonton, alberta, canada User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. hehe mines on top what you havent included is the price.. it would be on top too great info, thanks sweet!
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12-31-2007, 06:00 PM	#12
Mr Peanut 5.3 Sometime Age: 19 Join Date: Jul 2007 Posts: 244 Location: Anchorage, Ak User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. great info, thanks
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12-31-2007, 07:14 PM	#13
02dime big pimpin' Age: 26 Join Date: Jan 2006 Posts: 777 Location: outside edmonton alberta User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. well from the #s and the price i can get the 5.3 i think i can give up some power
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01-01-2008, 11:23 PM	#14
99,4.3vortec you noo get dis Age: 20 Join Date: Feb 2007 Posts: 222 Location: Kingsland, GA User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. i think i will be going with the 5.3 as well(really would love to have ls1 though)
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01-02-2008, 10:42 AM	#15
horsepwraddict s10 newb Join Date: Oct 2005 Posts: 598 Location: Princeton MA User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. not that it matters, but were these in stock vehicles (trucks, vettes, f-bodies ect.) or were they swapped s10s? Just curious.
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01-03-2008, 12:42 AM	#17
horsepwraddict s10 newb Join Date: Oct 2005 Posts: 598 Location: Princeton MA User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. cool, just wondering. The truck motors might actually make a little more rwhp in an s10 due to the lighter running gear. Cars are probably about the same. Last edited by horsepwraddict : 01-03-2008 at 12:45 AM.
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01-03-2008, 12:29 PM	#18
NateZQ8 WHAAAh? Age: 26 Join Date: Apr 2003 Posts: 1,237 Location: IOWA, land of Corn and Pork User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. And a t-56 might make a bit more than the slushbox 4l60e's
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01-04-2008, 05:36 PM	#19
02dime big pimpin' Age: 26 Join Date: Jan 2006 Posts: 777 Location: outside edmonton alberta User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. can you guys find #s on a 6.0 non LS2, just need comparisons against the 5.3
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01-04-2008, 08:09 PM	#21
02dime big pimpin' Age: 26 Join Date: Jan 2006 Posts: 777 Location: outside edmonton alberta User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. sorry missed that , thanks for all the info you provide here sweet
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01-04-2008, 10:35 PM	#22
RazorS10 Registered User Join Date: Mar 2007 Posts: 161 Location: User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. Income im actually going to buy a 5.3 but it will be bored to a 5.7 and then you can use a complete ls1 rotating assembly.
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01-09-2008, 01:27 PM	#23
SMACKEDS10 DD cammed whitesilvy04 Join Date: Aug 2002 Posts: 1,088 Location: DFW User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. lol, i like how everyone doesnt like 4.8L's I have one in my silvy that I took to get a dyno after my cam swap and it clocked in with 309rwhp. FYI: done on the 22's and a stall converter. I'm no where near full bolt ons yet. I'm about to slap in a lq4 in the silvy and put the 4.8L in the s10.. So far the best i've done at the 1/8th track is 8.97@74mph just imagine if that was in a lighter s10 pickup Last edited by SweetS10V8 : 01-11-2008 at 08:35 AM. Reason: Resized the 1200x1600 Picture
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01-11-2008, 12:17 AM	#25
SMACKEDS10 DD cammed whitesilvy04 Join Date: Aug 2002 Posts: 1,088 Location: DFW User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. you are correct.. I just wanted to show that 4.8L's have potential too just like the bigger motors. Seems like they dont get enough respect but whatever.. The fact that you can swap everything over gives people so many options to go with when building a motor like the ls series v8 motors.
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01-11-2008, 02:46 AM	#26
LS2Sonoma Registered User Age: 26 Join Date: Jun 2006 Posts: 463 Location: edmonton, alberta, canada User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. i like the 4.8s... anyone want to give me one?
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01-12-2008, 01:25 AM	#29
2005lm7 Registered User Age: 30 Join Date: Jan 2008 Posts: 211 Location: User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. For you guys looking into a 4.8 or a 5.3 I know the 05 and newer model lr4/lm7 mills were changed to a fully floating piston with locks. Probably dont mean much but I have an 05 silvy with the 5.3 and it has never had the infamous piston slap on cold start or the spark knock sound on warm start issues.
	[Reply w/Quote]

01-12-2008, 10:33 PM	#31
SMACKEDS10 DD cammed whitesilvy04 Join Date: Aug 2002 Posts: 1,088 Location: DFW User is: OffLine	Re: LSx Stock Dyno Graphs 4.8L, 5.3L, 5.7L, 6.0L LS2. yep your referring about the 5.3L H.O. right? I have one thats for sale..
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