FSC - Chevy Truck Forum

Thread: 350 vortec vs. carbed 454

Page 1 of 8 123 ... LastLast
Results 1 to 20 of 159
  1. #1
    Registered User Green meanie's Avatar
    Join Date
    Mar 2008
    Location
    charlo,mt
    Age
    34
    Posts
    201
    My Feedback

    (0% Positive Feedback)

    350 vortec vs. carbed 454

    which pulls a load better a lightly modded 5.7 vortec or carbed stock 454, same load, both 3/4 ton's (better gear for small block) I like the vortec, never gets hot, pulls very well, though a good running BBC has great take off power. what's all you's opinion,

  2. #2
    Supporting Gold Member GreaseDog's Avatar
    Join Date
    Dec 2004
    Location
    Elkhart IN
    Age
    35
    Posts
    16,175
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    if the BBC is in proper tune and repair, there's no way the poor little small block is going to stand a chance at winning.
    77 Chevy K20 - 80 GMC K2500 (in pieces)
    90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500

  3. #3
    Registered User Green meanie's Avatar
    Join Date
    Mar 2008
    Location
    charlo,mt
    Age
    34
    Posts
    201
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    :fsc: mileage will suffer on longer trips with BB, my '00 5.7 3/4 4x4 4.10's ccsb gets steady 12-13 mpg from montana to idaho pulling 7,000 pounds up the passes, worst was 11 mpg, also did not budge more than 190 degrees, with plenty of power, very happy with SBC.

  4. #4
    Registered User
    Join Date
    Jul 2005
    Location
    Euless, Texas
    Posts
    6,622
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by Green meanie
    which pulls a load better a lightly modded 5.7 vortec or carbed stock 454, same load, both 3/4 ton's (better gear for small block) I like the vortec, never gets hot, pulls very well, though a good running BBC has great take off power. what's all you's opinion,
    Vortec 350

    http://www.youtube.com/watch?v=XHsZ6DIAPIk

    http://www.youtube.com/watch?v=Zm-54_fxLgY

    Engine in signature pulls anything hooked up to it, runs cool, and doesn't ping on 87 octane.
    Last edited by Fast305; 12-30-2008 at 08:41 PM.
    1997 G1500, 5.7, 906s 2.02/1.60, GM 395' marine cam, 1.7 RR's, Marine Intake, BBK TB, 85mm MAF, 6.5 aircleaner, Thorley Tri-Ys, Thunderbolt 2.5 cats, Dynomax 22865 muffler, 4L80E, 0411, Hydroboost, 9.5" 14-bolt 3.73s, 8800 GVW front calipers, March 4490 pulleys, AD244 alt, D-Max fan

  5. #5
    Registered User Green meanie's Avatar
    Join Date
    Mar 2008
    Location
    charlo,mt
    Age
    34
    Posts
    201
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    :rocking: good choice

  6. #6
    Supporting Gold Member GreaseDog's Avatar
    Join Date
    Dec 2004
    Location
    Elkhart IN
    Age
    35
    Posts
    16,175
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by Green meanie
    :fsc: mileage will suffer on longer trips with BB, my '00 5.7 3/4 4x4 4.10's ccsb gets steady 12-13 mpg from montana to idaho pulling 7,000 pounds up the passes, worst was 11 mpg, also did not budge more than 190 degrees, with plenty of power, very happy with SBC.
    not necessarily, depends on the load, gears, tire sizes, and a whole bunch of other factors. i've seen several cases where swapping in a big block IMPROVED milage. bigger engine doesnt always mean worse economy.
    77 Chevy K20 - 80 GMC K2500 (in pieces)
    90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500

  7. #7
    Registered User Green meanie's Avatar
    Join Date
    Mar 2008
    Location
    charlo,mt
    Age
    34
    Posts
    201
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    :fsc: just from experience, all the vortec 454 ccsb's in my area all seem to get 10-12 mpg unloaded, but also depends on the way someone drives and maintnence, best Ive done on older trucks was with '75 1/2 ton 4x4 4spd 308 gear stock gutless 350 q-jet, 31" tire was 18mpg on hiway.

  8. #8
    shake & bake 91_bowtie's Avatar
    Join Date
    Jan 2002
    Location
    KCMO
    Age
    37
    Posts
    6,953
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by Fast305
    Vortec 350

    http://www.youtube.com/watch?v=XHsZ6DIAPIk

    http://www.youtube.com/watch?v=Zm-54_fxLgY

    Engine in signature pulls anything hooked up to it, runs cool, and doesn't ping on 87 octane.

    Well damn! That proves it. Close the thread! Two vids on youtube settled the case, once again.

    I've always known that you've had a plug wire loose, but to suggest that a sbc will out pull a bbc is down right stupid. :lol: Honestly, what do those vids prove? Were they pulling loads? Was it the same load? I have similar vids of my gauges, that I took so I could watch the tach, when testing different launch techniques. Should I be including that in all of my posts? Would that help get my point across? :LOL:
    Last edited by 91_bowtie; 12-30-2008 at 09:20 PM.
    08 TBSS
    91 HD 3/4 ton
    03 Z71 Tahoe

  9. #9
    - Luke 1989K1500's Avatar
    Join Date
    Jan 2005
    Location
    Ravenna, Michigan
    Age
    27
    Posts
    5,318
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by Green meanie
    :fsc:
    You dont have to put that before every post.
    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, solid axled, HP44/14ff, 4.88s, 35s/20s

  10. #10
    shake & bake 91_bowtie's Avatar
    Join Date
    Jan 2002
    Location
    KCMO
    Age
    37
    Posts
    6,953
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by 1989K1500
    You dont have to put that before every post.

    :fsc:you don't?
    08 TBSS
    91 HD 3/4 ton
    03 Z71 Tahoe

  11. #11
    - Luke 1989K1500's Avatar
    Join Date
    Jan 2005
    Location
    Ravenna, Michigan
    Age
    27
    Posts
    5,318
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by 91_bowtie
    :fsc:you don't?
    :fsc:I dont think so? :fsc:
    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, solid axled, HP44/14ff, 4.88s, 35s/20s

  12. #12
    Registered User
    Join Date
    Jul 2005
    Location
    Euless, Texas
    Posts
    6,622
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by 91_bowtie
    Well damn! That proves it. Close the thread! Two vids on youtube settled the case, once again.

    I've always known that you've had a plug wire loose, but to suggest that a sbc will out pull a bbc is down right stupid. :lol: Honestly, what do those vids prove? Were they pulling loads? Was it the same load? I have similar vids of my gauges, that I took so I could watch the tach, when testing different launch techniques. Should I be including that in all of my posts? Would that help get my point across? :LOL:
    I know how the older BBC ran stock and I know how the 5.7 runs stock. The Vortec 5.7/4L80E is a much more flexible powertrain than the 7.4/TH400. Puts more power to the wheels over a broader RPM range. This means it will pull better over the vast majority of conditions. Not to mention carb 454 is a pig on gas, i've seen plenty in the single digits fuel economy wise while pulling.

    Youtube video is of two very similarly setup trucks. One a carbed 7.4/TH400 driveline and the other a Vortec 5.7/4L60E. As you can see the Vortec 350 has supperior power and acceleration. Under a load expect to see the same results.
    1997 G1500, 5.7, 906s 2.02/1.60, GM 395' marine cam, 1.7 RR's, Marine Intake, BBK TB, 85mm MAF, 6.5 aircleaner, Thorley Tri-Ys, Thunderbolt 2.5 cats, Dynomax 22865 muffler, 4L80E, 0411, Hydroboost, 9.5" 14-bolt 3.73s, 8800 GVW front calipers, March 4490 pulleys, AD244 alt, D-Max fan

  13. #13
    - Luke 1989K1500's Avatar
    Join Date
    Jan 2005
    Location
    Ravenna, Michigan
    Age
    27
    Posts
    5,318
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    :fsc: My truck accelerates faster than either of those, that doesnt mean mine tows better. :fsc:
    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, solid axled, HP44/14ff, 4.88s, 35s/20s

  14. #14
    Registered User
    Join Date
    Jul 2005
    Location
    Euless, Texas
    Posts
    6,622
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by 1989K1500
    :fsc: My truck accelerates faster than either of those, that doesnt mean mine tows better. :fsc:
    Both trucks being stock, the truck that puts the most torque to the wheels over the broadest operating range is going to pull better. Quite honestly a 350 Vortec pulls alot like an older big block. I've pulled 6,000 lbs behind a stock Chevrolet Express 2500 with 3.42s and honestly it had great power.
    Last edited by Fast305; 12-30-2008 at 09:34 PM.
    1997 G1500, 5.7, 906s 2.02/1.60, GM 395' marine cam, 1.7 RR's, Marine Intake, BBK TB, 85mm MAF, 6.5 aircleaner, Thorley Tri-Ys, Thunderbolt 2.5 cats, Dynomax 22865 muffler, 4L80E, 0411, Hydroboost, 9.5" 14-bolt 3.73s, 8800 GVW front calipers, March 4490 pulleys, AD244 alt, D-Max fan

  15. #15
    shake & bake 91_bowtie's Avatar
    Join Date
    Jan 2002
    Location
    KCMO
    Age
    37
    Posts
    6,953
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by Fast305
    I know how the older BBC ran stock and I know how the 5.7 runs stock. The Vortec 5.7/4L80E is a much more flexible powertrain than the 7.4/TH400. Puts more power to the wheels over a broader RPM range. This means it will pull better over the vast majority of conditions. Not to mention carb 454 is a pig on gas, i've seen plenty in the single digits fuel economy wise while pulling.

    Youtube video is of two very similarly setup trucks. One a carbed 7.4/TH400 driveline and the other a Vortec 5.7/4L60E. As you can see the Vortec 350 has supperior power and acceleration. Under a load expect to see the same results.
    The vortec 350 also accelerates quicker than a stock powerstroke/cummins/dmax. I'm not going to search youtube for vids of their speedometers. So are you saying the vortec 350 would also out pull those trucks? I'm just trying to use your logic. What about a turbo honda that runs 10's? It accelerates quicker than the vortec, so it would out pull it too, right?
    08 TBSS
    91 HD 3/4 ton
    03 Z71 Tahoe

  16. #16
    Supporting Gold Member GreaseDog's Avatar
    Join Date
    Dec 2004
    Location
    Elkhart IN
    Age
    35
    Posts
    16,175
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    :fsc:i've pulled 6K with a stock C1500 and it took out the trans and overheated the motor. it had 3.42 gears too.:fsc:

    edit: crap, i forgot to put in my :fsc:s
    Last edited by GreaseDog; 12-30-2008 at 09:41 PM.
    77 Chevy K20 - 80 GMC K2500 (in pieces)
    90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500

  17. #17
    Supporting Gold Member GreaseDog's Avatar
    Join Date
    Dec 2004
    Location
    Elkhart IN
    Age
    35
    Posts
    16,175
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    fast, since the first post clearly states "which pulls a load better" and not which one will make a better daily driver that pulls a load once in a while, the answer is BBC.
    77 Chevy K20 - 80 GMC K2500 (in pieces)
    90 Chevy K3500 - 93 Chevy C2500 (in pieces) - 94 Chevy K1500

  18. #18
    shake & bake 91_bowtie's Avatar
    Join Date
    Jan 2002
    Location
    KCMO
    Age
    37
    Posts
    6,953
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by GreaseDog
    i've pulled 6K with a stock C1500 and it took out the trans and overheated the motor. it had 3.42 gears too.

    I don't understand what you're saying. Do you have a vid of the speedometer to help clear this up? :lol:
    08 TBSS
    91 HD 3/4 ton
    03 Z71 Tahoe

  19. #19
    - Luke 1989K1500's Avatar
    Join Date
    Jan 2005
    Location
    Ravenna, Michigan
    Age
    27
    Posts
    5,318
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by GreaseDog
    :fsc:i've pulled 6K with a stock C1500 and it took out the trans and overheated the motor. it had 3.42 gears too.:fsc:

    edit: crap, i forgot to put in my :fsc:s
    :fsc: Must have been slower than the two vids posted. :fsc:

    :fsc: And you need 3.08 gears, those are the best gears. :fsc:
    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, solid axled, HP44/14ff, 4.88s, 35s/20s

  20. #20
    - Luke 1989K1500's Avatar
    Join Date
    Jan 2005
    Location
    Ravenna, Michigan
    Age
    27
    Posts
    5,318
    My Feedback

    (0% Positive Feedback)

    Re: 350 vortec vs. carbed 454

    Quote Originally Posted by 91_bowtie
    I don't understand what you're saying. Do you have a vid of the speedometer to help clear this up? :lol:
    :fsc: :lol: :fsc:
    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, solid axled, HP44/14ff, 4.88s, 35s/20s

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •