2001 6.0 help
05-13-2017, 10:30 AM
#1
Registered User
Thread Starter
Join Date: May 2017
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
2001 6.0 help I have a 2001 Chevy Silverado 2500hd crew can ls. I've seen some threads on boring .065 over and turning it into a ls3 by putting a ls3 rotating assembly in it, putting ls3 heads on it cam swap and I'd like to put a ls3 intake on it, my question is how do I find a good cam for my truck that will produce most power the engine can handle. Do I have a l96 engine that's ls based? I need to pull the block casting number to be sure but I'm pretty sure it's ls based, running 821 heads. Any and all advice would be appreciated
05-13-2017, 11:06 AM
#2
TECH Senior Member
Your engine is an LS, probably an LQ4. ALL GM truck V8's since around 2000 are LS's. An LS3 top end would not be good for the type of truck you have. You would lose a bunch of low-end torque with this setup. What is your truck mostly used for?
Last edited by G Atsma; 05-13-2017 at 11:26 AM.
05-13-2017, 11:39 AM
#3
You should know all LS engines are Aluminum, then he also stated he has 821 heads, you should also know LQ4 do not have 821 heads...
I did not know they put any LS engines in Trucks...
You are so quick to point out things, you should be more accurate with your information.
05-13-2017, 11:50 AM
#4
TECH Senior Member
Truck engines are referred to as VORTEC(sp?) engines but they are LS-based, and are as interchangeable as the rest of the LS engines. Vortec engines are 4.8, 5.3, and 6.0, with most having cast iron blocks, and some 6.0 Vortec have cast iron heads.
So to correct you, not all LS engines are aluminum block.
So to correct you, not all LS engines are aluminum block.
05-13-2017, 12:05 PM
#5
Slogo you have a bit wrong also. Not all ls engines are alum and not all ls heads are alum either.
Actual pictures would help identify what you have. Head casting numbers plus checking if the block is actually magnetic would answer a few questions.
The largest cast iron block in gm vehicles is a 6.0 so that would answer one question if it were iron.
821 are rect port possibly ls3 heads. someone may have done a top end swap on the truck. That is very possible.
Also atsma you are wrong to say he shouldnt want a rect port top end if he needed low end torque.
A simple torque style cam like a 219/225 would work just fine. cut it on a 114+2 with a little over .600 lift and youve got a powerhouse. that will work on either head and with any truck engine/setup.
Actual pictures would help identify what you have. Head casting numbers plus checking if the block is actually magnetic would answer a few questions.
The largest cast iron block in gm vehicles is a 6.0 so that would answer one question if it were iron.
821 are rect port possibly ls3 heads. someone may have done a top end swap on the truck. That is very possible.
Also atsma you are wrong to say he shouldnt want a rect port top end if he needed low end torque.
A simple torque style cam like a 219/225 would work just fine. cut it on a 114+2 with a little over .600 lift and youve got a powerhouse. that will work on either head and with any truck engine/setup.
05-13-2017, 12:11 PM
#6
TECH Senior Member
Thank you tech, I stand corrected. Since he already apparently has rectangular heads, which manifold might he have on it?
Good call on the cam!
I guess my point above is that if he still had the OEM cathedral port heads, he would have more low end torque than with rectangular ports. That part is known.
Good call on the cam!
I guess my point above is that if he still had the OEM cathedral port heads, he would have more low end torque than with rectangular ports. That part is known.
05-13-2017, 12:25 PM
#7
Registered User
Thread Starter
Join Date: May 2017
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Hey I'm sorry for my newness to the subject, got a little carried away earlier, it is a lq4 with aluminum 317 heads, I will be pulling the motor from my truck and want to play around with it for use later on when i find a nice enough chassis to put it in, I would like to bore it to 4.065 and put a ls3 rotating assembly in it, I'm picking up some 821 cylinder heads today, need advice on a good cam for it
Trending Topics
05-13-2017, 12:27 PM
#8
Registered User
Thread Starter
Join Date: May 2017
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
Thank you for your reply, sorry for the mixup in heads earlier, I'm generally new to the subject. I'm willing to put some money down on this, just not sure about the cam, I've read there's issues with cam position sensor, I'm pretty sure I have the three bolt cam but not 100% positive
05-13-2017, 12:35 PM
#9
Im not sure id say that either. Not only is the intake manifold better, but the chamber is smaller making more power as well. Cyl port volume does not equate to velocity either.
Looking at the G8 l76 6.0 with rec hesds vs the lq9 (for higher comp) make nearly identical torque and that's the ls3 car intake that isnt supposed to make torque vs the truck intake supposed to make torque. Thats an 08 gt l76 (nonvvt cam specs 200/208 .47x/.47x) vs the 06 lq9 (196/201 .467/479) so VERY close. comparing it to an lq4 isnt a contest either.
Id say they are pretty good either way with tie breaker going to the square port for intake design and capability stock for more power.
That is comparing gm sae-j dyno graphs also.
Both are good platforms.
Looking at the G8 l76 6.0 with rec hesds vs the lq9 (for higher comp) make nearly identical torque and that's the ls3 car intake that isnt supposed to make torque vs the truck intake supposed to make torque. Thats an 08 gt l76 (nonvvt cam specs 200/208 .47x/.47x) vs the 06 lq9 (196/201 .467/479) so VERY close. comparing it to an lq4 isnt a contest either.
Id say they are pretty good either way with tie breaker going to the square port for intake design and capability stock for more power.
That is comparing gm sae-j dyno graphs also.
Both are good platforms.
05-13-2017, 12:48 PM
#10
Slogo you have a bit wrong also. Not all ls engines are alum and not all ls heads are alum either.
Actual pictures would help identify what you have. Head casting numbers plus checking if the block is actually magnetic would answer a few questions.
The largest cast iron block in gm vehicles is a 6.0 so that would answer one question if it were iron.
821 are rect port possibly ls3 heads. someone may have done a top end swap on the truck. That is very possible.
Also atsma you are wrong to say he shouldnt want a rect port top end if he needed low end torque.
A simple torque style cam like a 219/225 would work just fine. cut it on a 114+2 with a little over .600 lift and youve got a powerhouse. that will work on either head and with any truck engine/setup.
Actual pictures would help identify what you have. Head casting numbers plus checking if the block is actually magnetic would answer a few questions.
The largest cast iron block in gm vehicles is a 6.0 so that would answer one question if it were iron.
821 are rect port possibly ls3 heads. someone may have done a top end swap on the truck. That is very possible.
Also atsma you are wrong to say he shouldnt want a rect port top end if he needed low end torque.
A simple torque style cam like a 219/225 would work just fine. cut it on a 114+2 with a little over .600 lift and youve got a powerhouse. that will work on either head and with any truck engine/setup.
LS1 Aluminum
LS2 Aluminum
LS3 Aluminum
LS4 Aluminum
LS6 Aluminum
LS7Aluminum
LS9 Aluminum
What did I get wrong?
There are others But all LS are Aluminum.
05-13-2017, 01:43 PM
#11
The iron truck blocks are ls blocks also. You mean base block name...then maybe....except the ls3 block is also called an l92 block.
They are all ls design and therefore considered ls blocks.
If you want to be that picky the lsx block is an "LS" block but it is cast iron. It starts with ls also.
They are all ls design and therefore considered ls blocks.
If you want to be that picky the lsx block is an "LS" block but it is cast iron. It starts with ls also.
05-13-2017, 02:12 PM
#12
TECH Senior Member
Slogo- The LQ9, LQ4, LM7, LR4 are all LS-based, all cast-iron block truck engines. I don't know everything, but I know what I know.
05-13-2017, 02:39 PM
#13
Ha Ha You're grasping LS based,,, Try Gen 3 and Gen 4. You are correct on the LSX Block, but none of them come in anything from the factory.
Read just the 1st Paragraph and see if you can get my point out of it, you probably won't.
Ever seen the Movie Idiocracy. http://www.enginelabs.com/engine-tec...efi-university
Read just the 1st Paragraph and see if you can get my point out of it, you probably won't.
Ever seen the Movie Idiocracy. http://www.enginelabs.com/engine-tec...efi-university
05-13-2017, 02:51 PM
#14
TECH Senior Member
The point is, ALL V8's produced for cars since 1997 and trucks since about 2000 are the LS design, no matter what you want to call it. They all share a huge number of parts. BOTH truck and car engines are Gen 3 and 4, and now 5. If it's about designations, OK. Cars use LS-numeric names, trucks go by Vortec. Not sure how your point differs from all this, but it is minor.
05-13-2017, 02:52 PM
#15
What is the actual point of your argument?
The truck blocks are ls blocks. ls is the block architecture/design. Even if they are not "named" ls they all share the same architecture in gen3 and gen4 so are all ls.
Why isnt the gen5 sb an ls? Because it isnt the same architecture.
Its a simple as that. You are literally trying to make an argument over some point that isnt correct just because you want to argue.
I guess according to your argument the 873 cast iron heads arent ls heads? Nor the 317, 706, 862 because they came on iron truck blocks?
The truck blocks are ls blocks. ls is the block architecture/design. Even if they are not "named" ls they all share the same architecture in gen3 and gen4 so are all ls.
Why isnt the gen5 sb an ls? Because it isnt the same architecture.
Its a simple as that. You are literally trying to make an argument over some point that isnt correct just because you want to argue.
I guess according to your argument the 873 cast iron heads arent ls heads? Nor the 317, 706, 862 because they came on iron truck blocks?
