Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
04-30-2009, 09:39 PM | #1 |
Registered User
Join Date: Nov 2007
Location: Central OK
Posts: 396
|
350 mpg vs 454 mpg in stock form
Looks like from all the stuff I have seen and read am going to scrap the idea of a 5.3L. I am now planning on going with a 350 but ran across a '96 model vortec 454 for $1000 that has 30k miles on it. Now I am considering a this motor but I don't know if it will work with the stock I6 cyl Saginaw 3 speed bellhousing/flywheel. So what mileage you guys getting with 2wd non OD stock built 350's & 454's. I am planning on a edelbrock airgap, edelbrock avs carb and headers and I am running a stick and 3.73 12 bolt rear. So with all you guys experiance what would my mileage be with 350 & with 454.
|
04-30-2009, 09:47 PM | #2 |
Senior Member
Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,972
|
Re: 350 mpg vs 454 mpg in stock form
My 454 gets around 11mpg with TBI. I was getting 9 with a carb. I have 3.07 gears and hit the highway at 65-75mph. I don't haul a$$ off every light, but I do get on it from time to time.
__________________
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ |
04-30-2009, 10:14 PM | #3 |
Registered User
Join Date: Feb 2009
Location: Southern Oregon
Posts: 1,352
|
Re: 350 mpg vs 454 mpg in stock form
My '69 c-10 long bed with a stock 454 gets 9.5 on the highway and 7 going back and forth to work (an in town commute 2.5 miles 1 way). It has 3.73 gears and a TH400. The motor and tranny are out of a 1 ton '74 GMC. My '67 Suburban with a 283 and SM465 has been averaging 11.5 in town but have not got a highway average. Both vehicles motors are all stock with HEI's.
|
04-30-2009, 10:21 PM | #4 |
The Older Generation
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,593
|
Re: 350 mpg vs 454 mpg in stock form
-
I get about 12 on the highway with the White Truck. It has a stock 454 with a q-jet/th400/3.07 rear. I drive the 2 lanes and run between 55-60. I'm never in a hurry... LockDoc
__________________
Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
04-30-2009, 10:25 PM | #5 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: 350 mpg vs 454 mpg in stock form
that 454 you have will doa tick better than 99% of the guys responding here. It has the roller cam and better heads than anything that is vintage.
If you are getting a good deal on it, you can always buy it just to sell. |
04-30-2009, 10:27 PM | #6 |
Account Suspended
Join Date: Apr 2009
Location: Oklahoma City
Posts: 4,709
|
Re: 350 mpg vs 454 mpg in stock form
If both engines are in good shape then the 454 should get you about 10-12 on the highway with those gears and probably about 8 or 9 in town. The 350 should get about 15 on the highway and 11 or 12 in town.
|
04-30-2009, 10:28 PM | #7 |
Account Suspended
Join Date: Apr 2009
Location: Oklahoma City
Posts: 4,709
|
Re: 350 mpg vs 454 mpg in stock form
He said he's running a 3.73 gear with no Overdrive though.
|
04-30-2009, 11:14 PM | #8 |
I built it
Join Date: Sep 2008
Location: Bakersfield ca
Posts: 744
|
Re: 350 mpg vs 454 mpg in stock form
my 454 gets 12hyway and 14 town driving. must be somthing wrong with it lol
__________________
'72 k10 lwb 454, th400, 205, d44ft, 12b rear, 4in skyjacker, 35x12.5-15 superswampers, 4.56, blazer tank. painless wiring harness '98 dodge 3500 12v 5sp 4x4. the truck that actually runs Last edited by 72chevyk10; 04-30-2009 at 11:15 PM. |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|