10-23-2009, 09:10 PM
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#1
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slowsexyside
Join Date: Sep 2007
Location: laffeyette, louisiana
Age: 20
Posts: 3,193
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built vortec 454 vs. built 6.0??
well yall, im at it agin. WAnting more, sure i can drop more into my engine but id like to have something with more potential to build and drop in. another slow project lol. im leanin towards a 6.0 myself, but id like more input. i can either look for a BBC out of a 3/4 ton to tear down and rebuild, or find a 6.0 to build. takin all advice
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1997 K1500 Built vortec 355
Quote:
Originally Posted by StreetFreak
A good number of parts on my truck are ziptied on, simply because bolts are too heavy
imo
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10-23-2009, 09:20 PM
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#2
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hit the loud skinny pedal
Join Date: Jan 2008
Location: Concord, NC
Age: 16
Posts: 1,807
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Re: built vortec 454 vs. built 6.0??
lq9 bored to 402 with forged internals and all the goodies
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My name be Alex  This is what i drive
01 Z71- 5.3, leveled, 33's, BB tune, 4.56's, loud
90 Burban- Carbed 350, SM465, ~15" of lift, 14b ff, 3/4 10b- Unsold 
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10-23-2009, 09:37 PM
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#3
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slowsexyside
Join Date: Sep 2007
Location: laffeyette, louisiana
Age: 20
Posts: 3,193
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Re: built vortec 454 vs. built 6.0??
im new to the LS series engines so school me plz
__________________
1997 K1500 Built vortec 355
Quote:
Originally Posted by StreetFreak
A good number of parts on my truck are ziptied on, simply because bolts are too heavy
imo
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10-23-2009, 09:40 PM
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#4
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hit the loud skinny pedal
Join Date: Jan 2008
Location: Concord, NC
Age: 16
Posts: 1,807
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Re: built vortec 454 vs. built 6.0??
www.performancetrucks.net
all the schooling you could ask for and then some 
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My name be Alex This is what i drive
01 Z71- 5.3, leveled, 33's, BB tune, 4.56's, loud
90 Burban- Carbed 350, SM465, ~15" of lift, 14b ff, 3/4 10b- Unsold
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10-24-2009, 12:10 AM
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#5
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Registered User
Join Date: Dec 2008
Location: The OC
Age: 35
Posts: 20
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Re: built vortec 454 vs. built 6.0??
A 454 BBC can be made to 496 cubes easily and no loss of life span.
A 6.0 can be build to 408, but will likely last only 120K miles. Due to shallow piston design, and short deck height combined.
As with much in life do you have smog laws to abide by? Plan to do more then just race? Or do you want future upgradeability.
A 454 can get 450-475 smog legal HP with all the bolt-ons and some tricks of the imagination. It would bolt right in and be easiest to get running in all likely hood.
A 6.0 can get 475-500 smog legal HP with the same as above, but could be trickey to get smog legal and get running in a obs.
In a street race the 454 would likely win from a dig, but a 6.0 would tear it up top-end.
Not smog legal its all where your pocket books cries stop.
__________________
Since Les is quitting the show I emailed the producers and hopefully I'll be next. 
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10-24-2009, 08:25 AM
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#6
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slowsexyside
Join Date: Sep 2007
Location: laffeyette, louisiana
Age: 20
Posts: 3,193
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Re: built vortec 454 vs. built 6.0??
smog legal? we dont have to worry about that around here. no testing thank tha lord. im also leaning toward the 6.0, i know a 454 would kill me on gas, but a 6.0 could still get decent mileage from what i hear
__________________
1997 K1500 Built vortec 355
Quote:
Originally Posted by StreetFreak
A good number of parts on my truck are ziptied on, simply because bolts are too heavy
imo
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10-24-2009, 03:10 PM
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#7
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Registered User
Join Date: Nov 2007
Location: Monroe, MI
Posts: 617
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Re: built vortec 454 vs. built 6.0??
I vote 454 or 496. There's just something about a BBC that is sexy.
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Quote:
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Originally Posted by TheMaroonBaboon
because this thread like an OBS will never die
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2003 GMC Sierra 1500 2wd, 5.3L, 3.73 gears with locker RCSB
Stock 98 C1500 RCLB Vortec 305
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10-24-2009, 03:25 PM
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#8
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Greetings Earthlings
Join Date: Dec 2008
Location: Colorado
Age: 19
Posts: 613
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Re: built vortec 454 vs. built 6.0??
IMO, ditch both and go for an 8.1
But you could be this guy
http://www.youtube.com/watch?v=Wmv0C2jwEtQ
My vote is the 6.0 if you want decent mileage.
__________________
1999 OBS K1500 Z71
5.7l stock, except for glasspacks, Cobra 29 Nightwatch, 285/75r16 Hankook Dynapro MT's.
Best mod ---> Blackbear Tune
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10-24-2009, 03:39 PM
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#9
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Registered User
Join Date: Apr 2007
Location: delaware
Posts: 1,986
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Re: built vortec 454 vs. built 6.0??
the 8.1 is a monster of a motor even in stock form
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92 k1500 TBI350, performabuilt 4L60E, 14bolt SF rear 3.73s, TBI mods, headers, duals,tunerpro $OD . 32/11.5 m/t, vortecs, COMP XE256 cam 16.024 @ 84 MPH 5500 lbs
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10-24-2009, 04:24 PM
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#10
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Can I Hab Some?
Join Date: Aug 2006
Location: Happy Valley, Labrador
Age: 24
Posts: 3,103
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Re: built vortec 454 vs. built 6.0??
I'd vote for a BB chevy, even if it's a 7.4L or 8.1L.
I love small blocks, but theres nothing like a deep breathing BB screaming up the tachometer and throwing you back in your seat
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 <-Thanks Chuggs
2 Builds Currently In Progress:
- 98 GMC K1500 RCLB Project: Workhorse
- 83 GMC K5 Jimmy Project: The Darkness
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10-24-2009, 04:45 PM
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#11
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OBS 4X4 HOE!
Join Date: Dec 2008
Location: Rowlett, TX (Dallas)
Age: 31
Posts: 309
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Re: built vortec 454 vs. built 6.0??
Quote:
Originally Posted by 01SilvyZ71
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Quick highlight from pt.net on the subject:
99-00 lq4 had iron heads and a longer crank that cant be coupled to a 4l60, only a 4l80
01-04 lq4 came with aluminum heads and can be coupled to a 4l60 or 4l80
05-newer lq4 came with aluminum heads and the stronger rods that were in lq9's and can be coupled to a 4l60 or 4l80
all lq4's had 9.4:1 comp ratio
lq9's had the stronger rods aluminum heads, but with flat top pistons for a bump in compression ratio to 10:1
if i was going n/a i would pick up an lq9, for boosted i would go lq4, and if i was looking for an lq4 it would be an 05 or newer
Either way, if you go 6.0 get yourself a complete wiring harness for the swap.
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1999 Tahoe LT 4x4
- 6" Pro Comp Lift, 315x75x16 ProComp A/T's on 16x10, SSBC Force 10 brakes, 4.56 gears, true trac, Doug Thorley Tri-Y headers, Borla dual exhaust, ProCharger, BBP in PERSON Tune, 255 HP intank Walbro.
Last edited by bai78; 10-24-2009 at 04:46 PM.
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10-24-2009, 05:52 PM
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#12
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Greetings Earthlings
Join Date: Dec 2008
Location: Colorado
Age: 19
Posts: 613
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Re: built vortec 454 vs. built 6.0??
Quote:
Originally Posted by bai78
if i was going n/a i would pick up an lq9, for boosted i would go lq4, and if i was looking for an lq4 it would be an 05 or newer
Either way, if you go 6.0 get yourself a complete wiring harness for the swap.
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__________________
1999 OBS K1500 Z71
5.7l stock, except for glasspacks, Cobra 29 Nightwatch, 285/75r16 Hankook Dynapro MT's.
Best mod ---> Blackbear Tune
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10-24-2009, 09:28 PM
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#13
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Registered User
Join Date: Jul 2005
Location: Texas
Posts: 3,839
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Re: built vortec 454 vs. built 6.0??
If you are seriously asking this question...  Go BIG BLOCK and don't look back. You could build a tall deck 427 truck block into a 540 CID stroker and make 600+ smog legal hp.
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1983 G20 Conversion Van, 383 TPI, 10.5:1 compression, Custom Reed Roller cam, Ported 906 Vortecs, Doug Thorley Tri-Y headers, dual 2 1/2" exhaust, 4L60E, 3.08 gears. 7427 PCM in MPFI Mode
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10-24-2009, 09:50 PM
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#14
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Smart Guy
Join Date: Oct 2008
Location: Heartbeat USA
Age: 18
Posts: 283
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Re: built vortec 454 vs. built 6.0??
i cant believe it... its no replacement for displacement. point blank... bbc will stump on it.
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10-24-2009, 10:26 PM
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#15
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Registered User
Join Date: Jun 2005
Location: Outside B'ham
Posts: 424
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Re: built vortec 454 vs. built 6.0??
Quote:
Originally Posted by 01SilvyZ71
lq9 bored to 402 with forged internals and all the goodies
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I think you can only bore a 6.0 .040 for a total displacement of about 370 inches. More displacement would mean a stroker crank, not just over bored.
My 6.0 had to go .040 to clean it up and I was told that was about max in my engine.
Ronnie
__________________
"96 ECSB Totalled 11/06 "99 ECSB K1500 5.3 Base Silverado with 320K miles on the clock "01 GMC CCSB K2500 6.0 153K with 19.5" Michelin Medium Duty Tires "95 Cummins TD 310/751
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10-24-2009, 10:34 PM
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#16
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Registered User
Join Date: Oct 2009
Location: Los Angeles
Posts: 47
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Re: built vortec 454 vs. built 6.0??
Quote:
Originally Posted by Survivorman
A 454 BBC can be made to 496 cubes easily and no loss of life span.
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You could start with that from the factory by picking up the 8.1L Vortec, 496 cubes. Something like 370hp 570lb-ft stock.
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03 Suburban 2500 6.0, Banks CAI, Black Bear, Bilsteins.
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10-24-2009, 10:45 PM
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#17
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slowsexyside
Join Date: Sep 2007
Location: laffeyette, louisiana
Age: 20
Posts: 3,193
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Re: built vortec 454 vs. built 6.0??
i thought the 8.1 was just a hype? are the good engines?
__________________
1997 K1500 Built vortec 355
Quote:
Originally Posted by StreetFreak
A good number of parts on my truck are ziptied on, simply because bolts are too heavy
imo
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10-24-2009, 11:16 PM
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#18
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Registered User
Join Date: Jun 2009
Location: skeeterville
Posts: 845
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Re: built vortec 454 vs. built 6.0??
Quote:
Originally Posted by james_8997
i thought the 8.1 was just a hype? are the good engines?
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uhh yes.........yes they are.
__________________
2.5 ton rocks, 49" iroks, blown 454, 500 shot of juice, custom 32" ifs lift, head swallowing exhaust tips, Merlin 642, 4L80e, allison, turbo 400, coffee machine, browning stickers, mobile phone car charger.
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10-24-2009, 11:16 PM
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#19
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- Luke
Join Date: Jan 2005
Location: Ravenna, Michigan
Age: 21
Posts: 4,966
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Re: built vortec 454 vs. built 6.0??
6.0 by far. Theres a reason they dont use 454s anymore.
__________________
2001 rcsb Z71 06 clip, lowered, 6.0 LQ9, p&p 241s, cam, PI3600, LPP long tubes, etc. Tuned by TJ of Baker Engineering Inc - SOLD
1989 rcsb 4x4 5.7 Turtle Body Injection - Runs 10s on desktop dyno
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10-24-2009, 11:23 PM
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#20
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slowsexyside
Join Date: Sep 2007
Location: laffeyette, louisiana
Age: 20
Posts: 3,193
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Re: built vortec 454 vs. built 6.0??
what kinda N/A horsepower can these things put out?
__________________
1997 K1500 Built vortec 355
Quote:
Originally Posted by StreetFreak
A good number of parts on my truck are ziptied on, simply because bolts are too heavy
imo
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