The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Dockside Chat
Search

Notices

Random Quote: A woman without a man is like a fish without a bicycle.
Reply
 
Thread Tools Search this Thread
Old 11-09-2007, 06:10 PM
  #1    
Senior MemberCaptains Club Member
 
Join Date: Apr 2001
Location: Cocoa, FL Brevard
Posts: 3,749
Default 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

What is the story with these engines available in the 07 2500 series HD Trucks. I am no motor head is the 360+ hp a new engine that was just developed? I am looking for the best bang for the buck to pull my 8K boat and be mostly a daily driver.

__________________
My Suzuki 200's have tons of Torque, please no more lame talk about having to change the oil. Fish On...
HighSpeedPursuit is online now   Reply With Quote
Old 11-09-2007, 07:32 PM
  #2    
Senior Member
 
Join Date: Jul 2003
Location:
Posts: 729
Default RE: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

The finally just put some more tune to them in the chevys. I don't know the specifics but the Cady Escalades have been running that motor at around 345hp since around 2003 so it is a proven motor. I owned a 2003 chevy 2500 crew 4x4 and I wasn't really impressed with the power of the engine or the mileage allthough it got the job done towing my previous 30 hydrasport.
Knot Tight is offline   Reply With Quote
 
Old 11-09-2007, 09:24 PM
  #3    
Senior MemberCaptains Club Member
 
Join Date: Dec 2006
Location: kenly, n.c
Posts: 3,679
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

I have the 6.0(345 hp) in my silverado ss. Very strong motor, great with towing, My only beef with it is it's a very thirsty motor with 410 gears. I average 14 mpg highway and 11 towing. They've been around awhile, mostly in the 2500 chevy's, silverado ss's, escalade's, and the chevy vortec max(not positive about the max, but I think so) No problems wityh mine at all, love the power
__________________

D.Pate
"Relentless"
2006 McKee Craft 24 TE
Twin 175 Zukes
vettnman is offline   Reply With Quote
Old 11-09-2007, 09:39 PM
  #4    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Whoa guys. The engine being referred to in the new (2007 or 2008) 3/4 GM truck is the LY6. The LY6 is a cam-in-block, variable valve timing 353hp (5400 rpms) engine that produces 373 ft/lbs of torque at 4,400 rpms. It is mated to a new, 6-speed auto transmission.

This engine is quite different from 345/360hp version in use since 2004 in SS trucks, Denali's, and Caddy's offerings.

Have you driven one? It feels much more powerful than the previous 6.0 used. A big part of the feeling comes from the new transmission, which uses a first gear ratio of 4.03. The VVT system allows the engine to provide solid low-end torque (more than previous versions) AND high-rpms power without compromising one or the other. Additionally, it add improved throttle response, reduced emissions and improved economy. The engine is slightly detuned and is optimized for load-pulling and reliability. For the power-happy, non hard-working guys, GM has the all-aluminum 6.2 higher HP engine.

Quite frankly, GM did well with this setup. In comparison with the new 350hp Duramax, the 6.0 holds it's own ground with a load of 10k, even up 6% grades.

I would look at the 3.73 gear ratio. The truck will be happy to pull your 8k load on the weekends and yield acceptable economy during the work-week.

Note: the 6-speed auto is only offered in 2500 HD trucks. It is not available in the 2500 Suburban / Yukon XL or any of the 1500 series trucks. The 6.0 needs the 6-speed auto to have it's full advantages used.
__________________
1995 Lowe 2220 Deckboat
130hp V4 Evinrude
D-Rod2 is offline   Reply With Quote
Old 11-10-2007, 04:16 AM
  #5    
Member
 
Join Date: Jul 2006
Location:
Posts: 73
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Hi, I've got an '07 Silverado 2500HD with the 6.0 Vortec. I've been driving it for about 2 months now and love it. It's got great power and acceleration. The 6 speed trans work well.

The economy is OK but not great. With the 4.10 gears it is getting right at 12mpg in the city. I've not had the chance to get mileage numbers on the highway yet.

I pull much lighter boat than you are talking about. It's a 19' bay boat. Probably 3k - 3.5k lbs. You don't even know it's back there for the most part.

Everything D-Rod2 said is accurate.

And, when this thing switches cam timing, it really takes off. Feels much like my VTEC Honda only an even better kick.

So far, no problems and I'd highly recommend the new Silverado if your in the market.
bbrown1264 is offline   Reply With Quote
Old 11-10-2007, 05:24 AM
  #6    
Senior MemberCaptains Club Member
 
Join Date: Apr 2001
Location: Cocoa, FL Brevard
Posts: 3,749
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Thanks for the info guys. MPG sounds just like our 01 5.3 Tahoe, just lots more power.
__________________
My Suzuki 200's have tons of Torque, please no more lame talk about having to change the oil. Fish On...
HighSpeedPursuit is online now   Reply With Quote
Old 11-10-2007, 07:11 AM
  #7    
Senior MemberCaptains Club Member
 
Join Date: Sep 2005
Location: jacksonville, florida
Posts: 135
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

I'll probably get bashed for this but have you looked at the new Tundra? Much larger truck than previous versions.
Pulls my 5500lb boat with ease
381hp
10,600 towing
16 city 19 highway (actual is 17 city, 21 highway for me)
__________________

Home Sweet Home!
reelmagic is offline   Reply With Quote
Old 11-10-2007, 09:59 AM
  #8    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

bbrown1264:

If you were to buy your truck over again, would you buy the 3.73 gears instead of the 4.10s? Do you find the 6-speed auto can provide more than adequate ability with improved economy?

Reelmagic: I agree the Tundra deserves looking at if, even if remotely interested. The 5.7L engine used in the Tundra is better than GM's 6.0. It's more powerful AND more fuel efficient. It's also smoother and more refined.

However, I don't think the Tundra frame will handle the 8k nearly as well as the 2500HD GM would. The interiors of GM's trucks are also nicer in my opinion. The cost of a Tundra and 2500HD will be pretty close. GM's 1/2 ton is cheaper than Toyotas.

D
__________________
1995 Lowe 2220 Deckboat
130hp V4 Evinrude
D-Rod2 is offline   Reply With Quote
Old 11-10-2007, 10:30 AM
  #9    
Senior MemberCaptains Club Member
 
Join Date: Feb 2007
Location: MA
Posts: 4,153
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Quote:
reelmagic - 11/10/2007 10:11 AM

I'll probably get bashed for this but have you looked at the new Tundra? Much larger truck than previous versions.
Pulls my 5500lb boat with ease
381hp
10,600 towing
16 city 19 highway (actual is 17 city, 21 highway for me)
That would be my choice if I had to buy a HD truck right now, only thing I did not like when I looked at them were the P rated tires, I would change them out day one for some LT tires, preferably load range E.
MacCTD is offline   Reply With Quote
Old 11-10-2007, 12:11 PM
  #10    
Member
 
Join Date: Jun 2006
Location: Prairieville, La.
Posts: 31
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

I have a 2007 Silverado 1500, Z71 4x4, with the 367hp - 6.0 Vortex Max with a heavy duty 4 speed tranny. It has 3.73 gears. It has a tow rating of 10,800 lbs. It has lots of power, specially form 3,000 to 4,000 rpm's. I get 14.7 mpg and you will not even know you are towing anything. This truck is awsome. :grin:
__________________
Blazer Bay 2220Pro,200HPDI,80#Minni Kota,and a Huge Smile
gdup is offline   Reply With Quote
Old 11-10-2007, 02:21 PM
  #11    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

gdup:

Your 6.0 is not the same as the 6.0 used in an 07 2500 truck. The VortecMAX is the L76 motor. It is an aluminum block design. It produces 15 more horsepower but the torque curve is not quite at strong in the lower, <3,000 rpm department.

I made an error in a previous post. The 2008 Suburbans and Yukon XL 2500's DO HAVE the new 6L90 6-speed auto.

D
__________________
1995 Lowe 2220 Deckboat
130hp V4 Evinrude
D-Rod2 is offline   Reply With Quote
Old 11-10-2007, 03:40 PM
  #12    
Senior Member
 
Join Date: Jan 2006
Location: Sunny florida
Posts: 11,072
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Horsepower = torque x rpm/5252. Just how much TORQUE do you have at 3000 rpm's?? Forgwt the horsepower stuff..it's all about useable torque.
billinstuart is offline   Reply With Quote
Old 11-10-2007, 03:51 PM
  #13    
Member
 
Join Date: Jul 2006
Location:
Posts: 73
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

D-Rod, yes I think it would work just fine with the 3.73 gears. I don't know that I would get the higher gear but it wasn't an option for me. I was buying what was on the lot and 4.10's is what it had. From what I've seen at most of the dealerships, if you get the towing package and locker, you get the 4.10's. I might consider the 3.73 if I was going to have a truck built but I'd have to think more about it.
bbrown1264 is offline   Reply With Quote
Old 11-10-2007, 03:59 PM
  #14    
Senior MemberCaptains Club Member
 
Join Date: Aug 2002
Location: Baltimore,Maryland
Posts: 2,117
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Just put taller tires on it!
Lone Ranger is offline   Reply With Quote
Old 11-10-2007, 04:13 PM
  #15    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Quote:
bbrown1264 - 11/10/2007 5:51 PM

D-Rod, yes I think it would work just fine with the 3.73 gears. I don't know that I would get the higher gear but it wasn't an option for me. I was buying what was on the lot and 4.10's is what it had. From what I've seen at most of the dealerships, if you get the towing package and locker, you get the 4.10's. I might consider the 3.73 if I was going to have a truck built but I'd have to think more about it.
Thanks for the response. You can get the locking differential and towing package with the 3.73s. Many of the dealers around me are stocking 3.73's. At any rate, thanks for the response!!
D-Rod2 is offline   Reply With Quote
Old 11-10-2007, 04:25 PM
  #16    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Quote:
billinstuart - 11/10/2007 5:40 PM

Horsepower = torque x rpm/5252. Just how much TORQUE do you have at 3000 rpm's?? Forgwt the horsepower stuff..it's all about useable torque.
Not to argue, but horsepower does matter.

Horsepower is a unit of POWER. Power is a function of work completed over a specified time.

Torque is a measurement (note: not a function of) of work. Work = Force times Distance.

Smaller work magnitude but completed in quicker succession can produce more power than larger magnitudes of work completed in long intervals.

Example: A machine does 100ft-lbs of work in one second has the same power-rating as a bigger machine that does 200ft-lbs of work in two seconds. It's easy to draw the connection in a simple example liek this.

Engines are similar. As RPMS increase, the time interval decreases, thus power increases.

From a pure simple physics standpoint, we want engines to turn higher RPMS.

Unfortunately, as engine speed increases, internal friction doubles. It becomes difficult to get enough air through the values quickly enough. Actually, there is a whole list of things that are effected as speeds increase, which is why the standard vehicle doesn't turn 10,000 rpms. At any rate, you get the idea.

Done with my rant. Higher RPMS, Higher horsepower is fine for towing. You just need a drivetrain that can keep the engine in it's powertrain. Generally speaking, you need low gear-ratios to get the load moving and get the engine into it's power-band. The 6-speed auto does just that.


D-Rod2 is offline   Reply With Quote
Old 11-10-2007, 04:39 PM
  #17    
Senior Member
 
Join Date: Jan 2006
Location: Sunny florida
Posts: 11,072
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

So a Formula1 engine at 20,000 rpm's is the ticket? If you can gear it down, fine, but what is the engine life? Everyone talks "horsepower". but what they really want is GRUNT..torque.
billinstuart is offline   Reply With Quote
Old 11-10-2007, 04:48 PM
  #18    
Senior Member
 
Join Date: Oct 2005
Location: Los Angeles, FL., Texas or Georgia, depends. In UTAH now.
Posts: 7,178
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp


Quote:
reelmagic - 11/10/2007 10:11 AM

I'll probably get bashed for this but have you looked at the new Tundra? Much larger truck than previous versions.
Pulls my 5500lb boat with ease
381hp
10,600 towing
16 city 19 highway (actual is 17 city, 21 highway for me)
`

I believe there is a thread or was a thread at other forum where Tundra owners complained they are only getting 13 city and 16 hwy. One dude claimed 10 mpg towing.

I would not quote mileage on a truck. It's all right foot dependent.
solarfry is offline   Reply With Quote
Old 11-11-2007, 07:13 PM
  #19    
Senior MemberCaptains Club Member
 
Join Date: Nov 2002
Location: West Va/Fl/PA
Posts: 5,923
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Torque is moving a load-- HP is for winning races
Eyehooker is offline   Reply With Quote
Old 11-11-2007, 07:28 PM
  #20    
Senior Member
 
Join Date: Nov 2007
Location:
Posts: 126
Default Re: 6.0 Chevy 300hp VS 6.0 Chevy 360+ hp

Quote:
Eyehooker - 11/11/2007 9:13 PM

Torque is moving a load-- HP is for winning races
Nope. Not true.

Good HP numbers at lower rpms (important) are indicated by the torque figure. However, the invention of VVT and some other high-level technologies skew the torque number / rpms comparison.

Anyone here driven an 2-valve Ford 5.4 liter engine? Then drive a 3-valve Ford 5.4. The 3-valve is using variable cam technology. The max torque number comes a whole 1,000 rpms higher AND it's the same value. However, the 3-valve design will tow the PANTS off the older, lower RPM torque design.

Point is, the true indicator is a horsepower chart. You can gather all the information you need to know from it. You just want to make sure there is some power (horsepower) on the lower-end to get things launched and to hold through rough water.
D-Rod2 is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
305 Chevy vs. 350 Chevy thekents470 The Boating Forum 16 05-20-2007 07:22 PM
Used Chevy rit.05 Dockside Chat 5 02-03-2007 11:55 AM
can chevy do it brian117 The Boating Forum 17 10-16-2005 11:05 AM
Does anyone have the Chevy 2500 with the 300hp Vortec 6000? Stretch The Boating Forum 21 05-10-2004 08:21 PM
Chevy 2500HD vs. Chevy Tahoe TheBandit The Boating Forum 18 01-17-2004 06:24 AM

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0