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. 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.
the vortec max, its just heads and cam, the 243 heads, and i forgot, something close to a ls2 cam i believe.
as for the 4.8, they might have potential, but i know they do not get very good gas mileage when is a fullsize ECSB. one of my friends traded down a year and up 6k miles to get a truck with a 5.3, that 4.8 was gutless and sucked gas when u were towing something. its like the 2.8 of the s10's, it sucks, good for nothing other than to propel a truck.
Keep in mind too that the LS1 was a 98 (SAE rated 345 hp in 1998) and the 5.3 was an 04 (rated at 315 hp in 04), most of the 99-02 5.3's were in the 285-295 mark so in a way if your going with an older 5.3 with the non LS6 heads, you will be down a bit. Overall i think this is great info and for all that its worth, you still cant go wrong with an LS type engine in your s10, regardless of displacement!
I'll note also, that although they would still be pricey since they are so new, it seems most new body silverado's, rather the 4.8, 5.3, or 6.0 have 243 heads. I know my 4.8 does. I'll second that a 4.8 can make damn decent power. Mine had a hair under 300 from the factory, it came with a GMPP exhaust, and I've added a K&N cold air and a Diablosport tuner. It gets around pretty well. That power in an S10 would really move.
I'll second that a 4.8 can make damn decent power. Mine had a hair under 300 from the factory, it came with a GMPP exhaust, and I've added a K&N cold air and a Diablosport tuner. It gets around pretty well. That power in an S10 would really move.
Not only does it move, but when put in a 4-door ZR5 it still gets 24mpg on the highway. What more could a 16 year old teenage girl need? A dependable V8, 300hp/310lb-ft at the flywheel and good gas mileage out of a 4x4 mini truck.
would it be woth it to swap out the stock heads for a set of ls6 heads or would that result in a drop in compression? would it be better to just have my heads done? or would it even be worth it to get them done or should I just save up for some stage 2 or 3 heads?
I can get some ls6 heads for around 500 if it makes any difference.
I have a ls6 cam on the way and want to give the engine some grunt before it gets put in. I would like to make 350rwhp or more, but I will only be building up the top end of the engine this build. heads, cam, intake, etc. the engine only has 9000 on the od so I don't really want to tear in to the shortblock.
I would start with a FAST LSX intake manifold. Here is what it did for my truck, with no other mods or tuning. I just simply bolted it on and made another pull. It gained 27hp.
I would start with a FAST LSX intake manifold. Here is what it did for my truck, with no other mods or tuning. I just simply bolted it on and made another pull. It gained 27hp.
i will be starting my build as soon as i find a single cab s10/sonoma...lol
i already have a 6.0l iron block with all forged internals and a ls6 crank, 317 heads ported with 30 thousands off, and a complete ls6 intake, along with a built 4l60e and all the wiring and computer out of a wrecked trans am!!!
and as soon as it is together i can post a dyno sheet of it N/A and W/ nitrous!!!
Gonna add this to the information here just for everyones info.
This is my daily driver 2005 GTO.
Stock VS. tuned
No other changes
Stock VS. Pretty mild tune.
Stock timing was 21* as you can see very rich. I leaned it up to about 12.5 and went to 26* I am only on midgrade fuel. Being the daily im not concerned with huge numbers
Gonna add this to the information here just for everyones info.
This is my daily driver 2005 GTO.
Stock VS. tuned
No other changes
Stock timing was 21* as you can see very rich. I leaned it up to about 12.5 and went to 26* I am only on midgrade fuel. Being the daily im not concerned with huge numbers
Adding to the above for informational puposes. Above was Bone stock VS. Stock with my tune.
Below is a very mild Cam and header setup in my car. VS. Stock With a tune.
Camshaft 222/226 .575/.575 112LSA, Pace setter 1.75" Longtubes, Magnaflow Catback and the FAST 90mm off my truck.
The Most impressive part is the TQ gain. You can see it and feel it everywhere. Noticeable idle but it drives like stock.
Could have made a lot more with a bigger cam but its not what i wanted for this car.
Wow! That's some nice power you're making there with your 'daily driver' BlackX. I could only wish that my s10 will make that much power and torque. I have a 2001 5.3L with a VRX2 Camshaft, comp 918 valvsprings (.615 lift)standard height pushrods, and LS2 ported/shimmed oil pump all from Vengeance Racing. Also, I have a 2600 stall converter with 8.5/8.8 rear end with 3.73's. So, with the performance installs, I figure my 5.3L will get around high 300's in HP and TP... You think?
.....what........you have a GOAT tooo??? those are nice numbers for a near stock engine. I love my LS1, but I keep hearing how much TQ the LS2's seem to have and how seamless the delivery is. 6 spd?? Auto? Has to be an auto to keep that dyno curve so nice and purdy!!
I will add my dyno numbers as well for my LS1
Mods
Throttle Body – Holley 90MM
Intake Manifold – FAST LSX (90MM)
Headers – StainlessWorks Long tubes
Exhaust – MagnaFlow Cat-Back, True Dual Stainless, Straight Through w/ Custom Midpipes
Heads – Patriot LS6 Stage II
Cam – Custom Grind 220/224 110 LSA
Fuel Injectors – Lucas 42 lb. High Impedance
Induction – CAI Custom Air Induction w/ IAT Modification, Aluminum-Coated, K&N Filter
.....what........you have a GOAT tooo??? those are nice numbers for a near stock engine. I love my LS1, but I keep hearing how much TQ the LS2's seem to have and how seamless the delivery is. 6 spd?? Auto? Has to be an auto to keep that dyno curve so nice and purdy!!
I will add my dyno numbers as well for my LS1
Mods
Throttle Body – Holley 90MM
Intake Manifold – FAST LSX (90MM)
Headers – StainlessWorks Long tubes
Exhaust – MagnaFlow Cat-Back, True Dual Stainless, Straight Through w/ Custom Midpipes
Heads – Patriot LS6 Stage II
Cam – Custom Grind 220/224 110 LSA
Fuel Injectors – Lucas 42 lb. High Impedance
Induction – CAI Custom Air Induction w/ IAT Modification, Aluminum-Coated, K&N Filter
On the very first chart in the OP... pointing out the 5.7L in the 'vette... is that 5.7L different than the Vortec 5.7L?
If it is... how hard would it to get a Vortec 5.7L to those numbers? I'm thinking about a small cam (nothing too extreme) and some minor bolt ons when it's in the s10.