Truck is done - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ambros · 03-23-2014, 06:22 PM

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My 1965 C10 is finished ground up 8 months start to finish. I want to thank every one on the board. I learned so many things that saved me time and money. Now my only problem with the truck is gas mileage. I have a rebuilt 74 350 with a quadrajet carb 450/224-110 cam and a 700r4 trans. On my second tank of gas I got 6 mpg will this get better as the engine breaks in or do I change carbs and/or rear end gears

bj383ss · 03-23-2014, 06:26 PM

That is really low mileage. I have a 383 stroker in my Caprice with a 750 holley and TH350 that gets 7-8mpg with a 3.42 rearend. You should be getting over 10 at least. What is your rear gear? Does it have a high stall converter?

The Truck looks awesome by the way.

Bret

ambros · 03-23-2014, 06:37 PM

Thank you, The rear end was on the truck when I bought it> I think it is out of an 89 pickup and the gears are 4.10 and I think the stall converter is 2500 rpm

ChrisDollins · 03-23-2014, 06:44 PM

Truck looks awesome! Can't help with the mileage, but post more pics haha.

Chris

ambros · 03-23-2014, 06:57 PM

Thank you, here are some more pics Name: rear end.jpg
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ambros · 03-23-2014, 06:58 PM

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ambros · 03-23-2014, 06:59 PM

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ambros · 03-23-2014, 07:04 PM

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**jayoldschool** · 03-23-2014, 07:44 PM

Truck looks great. Mileage is low, even with the 4.10s. Lock up converter? Is it going into OD? Carb tuned correctly?

ambros · 03-23-2014, 07:50 PM

So far i have only driven around town and the truck runs great. In 2 weeks I plan to take a trip to phoenix so i will see what king of mileage it get's on the highway

**TJ's Chevy** · 03-23-2014, 08:04 PM

Check what RPM's your truck is at when your at 60 MPH...If you RPM's are high then that should explain the low mileage...you might also consider re-tuning the carb...That 350 should get at least 9-11 miles per gallon with a good quadrajet carb. Nice truck and great job!

Monte's62 · 03-23-2014, 08:06 PM

Ambros Job well done. She's a beaut!!!!!!!!

Jeff La · 03-23-2014, 11:53 PM

Quote:

Originally Posted by Monte's62

Ambros Job well done. She's a beaut!!!!!!!!

+1

dialric · 03-23-2014, 08:06 PM

really nice clean job.

**lolife99** · 03-23-2014, 08:24 PM

Beautiful truck!

ambros · 03-23-2014, 08:36 PM

Thanks for all the compliments I will check rpms when I get it out on the highway. I still need 100 more miles till brake in complete.

Bullett · 03-23-2014, 08:40 PM

Absolutely beautiful. Very cool color combo

**Mathew21** · 03-23-2014, 09:19 PM

Wow Beautiful truck.

Spragg · 03-23-2014, 09:44 PM

Nice truck.

AcampoDave · 03-23-2014, 10:11 PM

All that in 8 months....wow! Are you gonna even know what to do with all your free time now? Looks great.

perro13 · 03-23-2014, 10:22 PM

Nice

63burban · 03-23-2014, 11:10 PM

Very nice truck, didn't think gray could look that good.
For better fuel mileage, 3:42 rear, loose the stall converter and the Quadrajet, I have good luck with Edelbrock carbs. I have a 283/700r4 and 3:73 gears in my 63 and am getting 16mpg chasing around out in the country but not exceeding 60mph or the mileage drops drastically.
My 56 Chevy Belair has a warmed over 305 with an RV cam, aluminum GM intake, Edelbrock, 700r4 and a 3:55 rear end. Running at 70-75 on the freeway I can get 21-22mpg and that is trunk loaded, back seat loaded on a trip with two adults, 20 with the AC on.

63burban · 03-23-2014, 11:12 PM

Apparently you weren't fighting the winter like some of us. 8 months would be cool.

La Zona Imagery · 03-24-2014, 12:32 AM

That looks very sweet!

66chevy43 · 03-24-2014, 01:40 AM

Nice looking truck! good luck with gas mileage and with a 700r4 it should be better than that!

03-23-2014, 06:22 PM	#1
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Truck is done My 1965 C10 is finished ground up 8 months start to finish. I want to thank every one on the board. I learned so many things that saved me time and money. Now my only problem with the truck is gas mileage. I have a rebuilt 74 350 with a quadrajet carb 450/224-110 cam and a 700r4 trans. On my second tank of gas I got 6 mpg will this get better as the engine breaks in or do I change carbs and/or rear end gears Last edited by ambros; 03-23-2014 at 09:51 PM.

03-23-2014, 06:26 PM	#2
bj383ss Registered User Join Date: Sep 2012 Location: Leander, TX Posts: 969	Re: Truck is done That is really low mileage. I have a 383 stroker in my Caprice with a 750 holley and TH350 that gets 7-8mpg with a 3.42 rearend. You should be getting over 10 at least. What is your rear gear? Does it have a high stall converter? The Truck looks awesome by the way. Bret __________________ 64' Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=586955

03-23-2014, 06:37 PM	#3
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done Thank you, The rear end was on the truck when I bought it> I think it is out of an 89 pickup and the gears are 4.10 and I think the stall converter is 2500 rpm

03-23-2014, 06:44 PM	#4
ChrisDollins Registered User Join Date: Apr 2011 Location: Pocahontas, AR Posts: 554	Re: Truck is done Truck looks awesome! Can't help with the mileage, but post more pics haha. Chris __________________ 1966 C10 http://67-72chevytrucks.com/vboard/s...d.php?t=615165 1968 GTO http://67-72chevytrucks.com/vboard/s...=1#post7650182

03-23-2014, 06:57 PM	#5
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done Thank you, here are some more pics

03-23-2014, 06:58 PM	#6
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done

03-23-2014, 06:59 PM	#7
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done

03-23-2014, 07:04 PM	#8
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done

03-23-2014, 07:44 PM	#9
jayoldschool Moderator Join Date: Dec 2012 Location: ON, Canada Posts: 2,157	Re: Truck is done Truck looks great. Mileage is low, even with the 4.10s. Lock up converter? Is it going into OD? Carb tuned correctly?

03-23-2014, 07:50 PM	#10
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done So far i have only driven around town and the truck runs great. In 2 weeks I plan to take a trip to phoenix so i will see what king of mileage it get's on the highway

03-23-2014, 08:04 PM	#11
TJ's Chevy Post Whore Join Date: Mar 2013 Location: Southern Oregon Posts: 10,384	Re: Truck is done Check what RPM's your truck is at when your at 60 MPH...If you RPM's are high then that should explain the low mileage...you might also consider re-tuning the carb...That 350 should get at least 9-11 miles per gallon with a good quadrajet carb. Nice truck and great job! __________________ 1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643 1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056 My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw

03-23-2014, 08:06 PM	#12
Monte's62 Registered User Join Date: Dec 2013 Location: Dallas Ga Posts: 308	Re: Truck is done Ambros Job well done. She's a beaut!!!!!!!!

03-23-2014, 08:06 PM	#14
dialric Registered User Join Date: Nov 2008 Location: grand rapids michigan Posts: 324	Re: Truck is done really nice clean job.

03-23-2014, 08:24 PM	#15
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,692	Re: Truck is done Beautiful truck! __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

03-23-2014, 08:36 PM	#16
ambros Registered User Join Date: Jul 2013 Location: Yorba Linda California Posts: 58	Re: Truck is done Thanks for all the compliments I will check rpms when I get it out on the highway. I still need 100 more miles till brake in complete.



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03-23-2014, 08:40 PM	#17
Bullett Registered User Join Date: Dec 2013 Location: Fairfield, Maine Posts: 302	Re: Truck is done Absolutely beautiful. Very cool color combo

03-23-2014, 09:19 PM	#18
Mathew21 Senior Member Join Date: May 2010 Location: Clinton township, MI Posts: 1,192	Re: Truck is done Wow Beautiful truck.

03-23-2014, 09:44 PM	#19
Spragg Registered User Join Date: Jul 2008 Location: Alberta Posts: 44	Re: Truck is done Nice truck.

03-23-2014, 10:11 PM	#20
AcampoDave Registered User Join Date: Feb 2013 Location: central California Posts: 2,733	Re: Truck is done All that in 8 months....wow! Are you gonna even know what to do with all your free time now? Looks great.

03-23-2014, 10:22 PM	#21
perro13 Registered User Join Date: Dec 2008 Location: Stockton CA Posts: 2,364	Re: Truck is done Nice

03-23-2014, 11:10 PM	#22
63burban Chevy addict Join Date: May 2012 Location: Iron Ridge, WI Posts: 1,085	Re: Truck is done Very nice truck, didn't think gray could look that good. For better fuel mileage, 3:42 rear, loose the stall converter and the Quadrajet, I have good luck with Edelbrock carbs. I have a 283/700r4 and 3:73 gears in my 63 and am getting 16mpg chasing around out in the country but not exceeding 60mph or the mileage drops drastically. My 56 Chevy Belair has a warmed over 305 with an RV cam, aluminum GM intake, Edelbrock, 700r4 and a 3:55 rear end. Running at 70-75 on the freeway I can get 21-22mpg and that is trunk loaded, back seat loaded on a trip with two adults, 20 with the AC on.

03-23-2014, 11:12 PM	#23
63burban Chevy addict Join Date: May 2012 Location: Iron Ridge, WI Posts: 1,085	Re: Truck is done Apparently you weren't fighting the winter like some of us. 8 months would be cool.

03-24-2014, 12:32 AM	#24
La Zona Imagery Registered User Join Date: Nov 2013 Location: So Cal Posts: 131	Re: Truck is done That looks very sweet! __________________ 1965 Chevy C-10 350 V8 2003 GMC Sierra Crew Cab 6.0L 4x4

03-24-2014, 01:40 AM	#25
66chevy43 Registered User Join Date: Sep 2013 Location: Willamette Valley Oregon Posts: 110	Re: Truck is done Nice looking truck! good luck with gas mileage and with a 700r4 it should be better than that!

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