6.0L vs. 5.3L
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6.0L vs. 5.3L Thanks for the add!
Looking at doing an LS swap in a 64 C10 I'm building and just looking for some input from those with more experience in the LS world. I have found a couple motors one being a 2005 5.3L LM7 130K w/ harness, ecm and acc. $450 and a 2001 6.0L LQ4 155K w/harness, ecm, and acc. $600 Not looking to build a big HP motor or anything, I just want a good running, sounding and decent gas mileage getting motor. The idea is if I want to hop in this thing and drive it to Indy or PA from Cols, Oh for a swap meet, it won't break me doing so. I know the 6.0L won't get as good of mpg, but is the HP and torque gain worth it in you opinion. Is there any differences mechanically between a 2001 and 2005 motor that I need to consider, whether that is 5.3 or 6.0. Whats your thoughts?
Thanks!
Looking at doing an LS swap in a 64 C10 I'm building and just looking for some input from those with more experience in the LS world. I have found a couple motors one being a 2005 5.3L LM7 130K w/ harness, ecm and acc. $450 and a 2001 6.0L LQ4 155K w/harness, ecm, and acc. $600 Not looking to build a big HP motor or anything, I just want a good running, sounding and decent gas mileage getting motor. The idea is if I want to hop in this thing and drive it to Indy or PA from Cols, Oh for a swap meet, it won't break me doing so. I know the 6.0L won't get as good of mpg, but is the HP and torque gain worth it in you opinion. Is there any differences mechanically between a 2001 and 2005 motor that I need to consider, whether that is 5.3 or 6.0. Whats your thoughts?
Thanks!
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Not sure about the mpg difference, but personally I wouldn't care much if it's just a weekend toy kind of ride. The reason I'd choose the 6.0 is because the extra cubes are going to create much better torque and horsepower...especially considering that you're just doing a mild n/a build
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Verdad Gallardo Thread Starter
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To be honest, it seems like a lot of guys are throwing 5.3L in all these trucks and I was wanting to be just a little different with this truck. More power is always good. Not that I will be doing burnouts with the price of these tires, but when I step on it I want it to get out of it's own way. I have 22" transit rims and overall height is approx. 26"
I have a 2005 Sierra Z71 crewcab 5.3l as the winter driver with a short commute and am getting 13. In summer or when I had a longer commute that could come up to 16-17.
Older trucks are smaller and a lot lighter.
Older trucks are smaller and a lot lighter.
A lot has to do with 4Wd vs 2WD. I get 12-13 in my 04 suburban Z71, but I've seen standard 04's get 16. Both 5.3's.
Caprice, your comment about the trans is spot on. 4L80 isn't exactly known for its minimal power drain and efficient transmission of power
Caprice, your comment about the trans is spot on. 4L80 isn't exactly known for its minimal power drain and efficient transmission of power
I think I would also...it will be a little easier to do the cable throttle and the extra power will be nice. That being said...I run both, both swapped.
I run a 6.0/4l80e in this 86 C-30 dually...
I went from 6-8 mpg with a 7.4L/SM465 to 12-18 mpg with the new LS combo. It feels like I doubled the power, and torque is as good or better.
(EDIT: I run a Dana 70 HD with 3.55 gears in this thing.)
I run a 5.3L/4l60e in my 1972 Chevelle wagon...
This thing gets 19-24 mpg all day long on the road...with 3.73 gears. I wouldn't have believed it if I hadn't seen it myself.
I guess what I'm saying is, you wont be disappointed whichever route you go.
Last edited by CattleAc; Jan 10, 2016 at 10:43 PM. Reason: Added details
On The Tree
Joined: Jun 2012
Posts: 122
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Thanks for the add!
Looking at doing an LS swap in a 64 C10 I'm building and just looking for some input from those with more experience in the LS world. I have found a couple motors one being a 2005 5.3L LM7 130K w/ harness, ecm and acc. $450 and a 2001 6.0L LQ4 155K w/harness, ecm, and acc. $600 Not looking to build a big HP motor or anything, I just want a good running, sounding and decent gas mileage getting motor. The idea is if I want to hop in this thing and drive it to Indy or PA from Cols, Oh for a swap meet, it won't break me doing so. I know the 6.0L won't get as good of mpg, but is the HP and torque gain worth it in you opinion. Is there any differences mechanically between a 2001 and 2005 motor that I need to consider, whether that is 5.3 or 6.0. Whats your thoughts?
Thanks!
Looking at doing an LS swap in a 64 C10 I'm building and just looking for some input from those with more experience in the LS world. I have found a couple motors one being a 2005 5.3L LM7 130K w/ harness, ecm and acc. $450 and a 2001 6.0L LQ4 155K w/harness, ecm, and acc. $600 Not looking to build a big HP motor or anything, I just want a good running, sounding and decent gas mileage getting motor. The idea is if I want to hop in this thing and drive it to Indy or PA from Cols, Oh for a swap meet, it won't break me doing so. I know the 6.0L won't get as good of mpg, but is the HP and torque gain worth it in you opinion. Is there any differences mechanically between a 2001 and 2005 motor that I need to consider, whether that is 5.3 or 6.0. Whats your thoughts?
Thanks!
No really though i want one of them.. thanks
peace Last edited by the404man; Jan 11, 2016 at 09:32 AM.
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From: Alaska
You probably can't go wrong with either one, but since you have the choice of either 100% complete with basically the same mileage, it would make sense to step up to the 6.0L for the $150 more. Throw some cheap 243 heads on for a nice 10:1 and pick a good cam and let 'er rip. 
I'm with 404man on this one also...I was going to mention that in my first post...if you can swing it, get them both...there's no way you'll lose money on either one when you get ready to sell the one you don't want...