Chevy 4.3 Liter V6 in one of our trucks - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

406 Q-ship · 05-04-2011, 03:30 PM

Ask yourself how long will it take to recover the cost of the swap from the 350 (way better than ANY 305 for MPG) to the 4.3 TPI. Yes, there were Q-jeted 4.3 in vans, fullsized pickups (before 87), and cars. The 305's small bore makes the 350 a better mileage engine, everytime I have dumped the 305 for a 350 the added torque made that vehicle drive so much better, less throttle equalled better around town mileage. If your 350 gets poor mileage then work on the tune up, check the EPA mileage difference between a 5.0 truck and a 5.7, it is like 1 or 1 MPG. You could go the lower cost route by tuning up the 350, along with adding a vacuum gauge, then some careful throttle application will give great dividends for little to cash outlay.

brad_man_72 · 05-04-2011, 05:01 PM

[QUOTE=Clyde65;4661961]Brad_Mann, they do put a 5.3 in a Colorado!

[url]

i-4 and available 3.7 liter i-5 is all I could find on that site. So I googled it and saw that apparently you can or at least cold get a vc colorado. I learn something new everyday. Thanks

edhtrd71 · 05-04-2011, 10:33 PM

Do it. These trucks really arent that heavy depending on options. I like seeing different builds. The 4.3 is a good engine, still used in the new body style trucks. Use the fuel injection and overdrive trans with 3.42s or 3.73s depending on your driving style. I bet you will get pretty good mileage and performance.

1LoC10 · 05-06-2011, 10:40 PM

[quote=brad_man_72;4662131]

Quote:

Originally Posted by Clyde65

Brad_Mann, they do put a 5.3 in a Colorado!

[url]

i-4 and available 3.7 liter i-5 is all I could find on that site. So I googled it and saw that apparently you can or at least cold get a vc colorado. I learn something new everyday. Thanks

just click the build your own button, its right there at the bottome 5.3 3LT

*stich626* · 05-06-2011, 11:17 PM

a 4.3 with a 700r4 or the 4e60 and 3.42 gears will get up and go, and get good mpg..
dropping it in a old truck with a th350 and 3,08 gears it be a dog..

Hubscrub · 05-06-2011, 11:44 PM

Do whatever makes you happy don't be like me and regret stuff like i do i changed my inline over to a 350 and sometimes i hate that i did.

ubtripn · 05-06-2011, 11:51 PM

I have the 700r4 but no idea as to my rearend, I will have to id it. Thanks stitch626 and hubscrub.

R.L. · 05-07-2011, 12:23 AM

The 4.3 is a good engine, I have a 09 extended cab with one and that is a much more massive vehicle. How much lighter is a extended cab s-10 than a standard cab swb c-10. I wouldn't think it would be that much, gear it right keep the fuel injection and a overdrive transmission it shouldn't be lacking for anything in everyday traffic. Dules sound good on them IMO.

Hubscrub · 05-07-2011, 08:49 AM

i have to add that these trucks are small anyways compared to nowdays and my wife's 02 GMC has a 4.3 been good and runs down the road just as good as my V-8 trucks maybe better in everyday driving.

ubtripn · 05-07-2011, 08:59 AM

Yeah, my 68 looks like a minitreuck compared to my f250. I wasn't thinking there would be too much of a weight difference.

Eddie H. · 05-07-2011, 09:52 AM

The fuel injected 4.3 is one heck of a good little engine. My son has one in a full size 2000 silverado. It gets around 20 mpg with the 4l60E overdrive, and has decent power for normal everyday driving. It all depends on what you want to use the truck for. It's not a hot rod engine, and I wouldn't recommend it for heavy towing, but for just a daily driver, it's not bad.

jmcdaniel · 08-25-2011, 07:02 AM

Would any of you guys think of putting in a late model 4.3/700r4 combo in a 1/2 ton 67-72 suburban that would be used for cruising and daily driving? I don't need to go fast, but i don't want it to be a gutless burb. thx.

patriot9879 · 08-25-2011, 10:38 AM

I think a F/I 4.3 in a C10 would be very comparable to the same engine in an S10. I think a burb would be a little heavy. The 4.3 has decent torque and would pair well with 3.42 (non od) or 3.73 (od) to get your mileage. It is definitely a much cheaper option than one of the LS series engines. As others have said, there are other options for more power, but I don't think the 4.3 would be "under powered". I would definitely look for a F/I motor.

--Parker

richards72chevy · 08-25-2011, 07:26 PM

I think it would be pretty cool.I used to have an old truckin magazine there was 67 short step side that had a 4.3 v6.It had aliminum rims and a fiber glass front end.Im shure that took off alot of wieght.He said it got excellent mpg's!

eldogg · 08-25-2011, 09:30 PM

I just finished a 2000 4.3 5 speed swap in a '77 Luv(I know it not a 67-72). It feel like it gonna be FAST. I think they were 190 hp. Thats more than a 307.

05-04-2011, 03:30 PM	#26
406 Q-ship Registered User Join Date: Oct 2010 Location: Largo Florida Posts: 632	Re: Chevy 4.3 Liter V6 in one of our trucks Ask yourself how long will it take to recover the cost of the swap from the 350 (way better than ANY 305 for MPG) to the 4.3 TPI. Yes, there were Q-jeted 4.3 in vans, fullsized pickups (before 87), and cars. The 305's small bore makes the 350 a better mileage engine, everytime I have dumped the 305 for a 350 the added torque made that vehicle drive so much better, less throttle equalled better around town mileage. If your 350 gets poor mileage then work on the tune up, check the EPA mileage difference between a 5.0 truck and a 5.7, it is like 1 or 1 MPG. You could go the lower cost route by tuning up the 350, along with adding a vacuum gauge, then some careful throttle application will give great dividends for little to cash outlay. __________________ Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle."

05-04-2011, 05:01 PM	#27
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Chevy 4.3 Liter V6 in one of our trucks [QUOTE=Clyde65;4661961]Brad_Mann, they do put a 5.3 in a Colorado! [url] i-4 and available 3.7 liter i-5 is all I could find on that site. So I googled it and saw that apparently you can or at least cold get a vc colorado. I learn something new everyday. Thanks __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project,

05-04-2011, 10:33 PM	#28
edhtrd71 Registered User Join Date: Jan 2011 Location: Edinburg, Texas. Posts: 194	Re: Chevy 4.3 Liter V6 in one of our trucks Do it. These trucks really arent that heavy depending on options. I like seeing different builds. The 4.3 is a good engine, still used in the new body style trucks. Use the fuel injection and overdrive trans with 3.42s or 3.73s depending on your driving style. I bet you will get pretty good mileage and performance.

05-06-2011, 11:17 PM	#30
stich626 Account Suspended Join Date: Sep 2010 Location: hingham ma Posts: 1,721	Re: Chevy 4.3 Liter V6 in one of our trucks a 4.3 with a 700r4 or the 4e60 and 3.42 gears will get up and go, and get good mpg.. dropping it in a old truck with a th350 and 3,08 gears it be a dog..

05-06-2011, 11:44 PM	#31
Hubscrub Cruzin Join Date: Dec 2009 Location: on the road Posts: 2,835	Re: Chevy 4.3 Liter V6 in one of our trucks Do whatever makes you happy don't be like me and regret stuff like i do i changed my inline over to a 350 and sometimes i hate that i did. __________________ Lime Wife's 67https://www.google.com/url?sa=t&rct=...wZEMODaS2d94u8 Back to the Fifties 59 https://www.google.com/url?sa=t&rct=...NAeStpydfrcj_U Proverbs 3:5,6 "Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything."Charles Kuralt In memory of our first baby daughter, daddy and mommy love you. Danica Grace 6/26/14

05-06-2011, 11:51 PM	#32
ubtripn Registered User Join Date: Apr 2010 Location: Boise, ID Posts: 1,280	Re: Chevy 4.3 Liter V6 in one of our trucks I have the 700r4 but no idea as to my rearend, I will have to id it. Thanks stitch626 and hubscrub.

05-07-2011, 12:23 AM	#33
R.L. Registered User Join Date: Sep 2008 Location: Mobile, Al. Posts: 687	Re: Chevy 4.3 Liter V6 in one of our trucks The 4.3 is a good engine, I have a 09 extended cab with one and that is a much more massive vehicle. How much lighter is a extended cab s-10 than a standard cab swb c-10. I wouldn't think it would be that much, gear it right keep the fuel injection and a overdrive transmission it shouldn't be lacking for anything in everyday traffic. Dules sound good on them IMO.

05-07-2011, 08:49 AM	#34
Hubscrub Cruzin Join Date: Dec 2009 Location: on the road Posts: 2,835	Re: Chevy 4.3 Liter V6 in one of our trucks i have to add that these trucks are small anyways compared to nowdays and my wife's 02 GMC has a 4.3 been good and runs down the road just as good as my V-8 trucks maybe better in everyday driving. __________________ Lime Wife's 67https://www.google.com/url?sa=t&rct=...wZEMODaS2d94u8 Back to the Fifties 59 https://www.google.com/url?sa=t&rct=...NAeStpydfrcj_U Proverbs 3:5,6 "Thanks to the Interstate Highway System, it is now possible to travel across the country from coast to coast without seeing anything."Charles Kuralt In memory of our first baby daughter, daddy and mommy love you. Danica Grace 6/26/14

05-07-2011, 08:59 AM	#35
ubtripn Registered User Join Date: Apr 2010 Location: Boise, ID Posts: 1,280	Re: Chevy 4.3 Liter V6 in one of our trucks Yeah, my 68 looks like a minitreuck compared to my f250. I wasn't thinking there would be too much of a weight difference.

05-07-2011, 09:52 AM	#36
Eddie H. Registered User Join Date: Mar 2001 Location: Paradise TX USA Posts: 1,200	Re: Chevy 4.3 Liter V6 in one of our trucks The fuel injected 4.3 is one heck of a good little engine. My son has one in a full size 2000 silverado. It gets around 20 mpg with the 4l60E overdrive, and has decent power for normal everyday driving. It all depends on what you want to use the truck for. It's not a hot rod engine, and I wouldn't recommend it for heavy towing, but for just a daily driver, it's not bad. __________________ "Negative people always seem to have a problem for every solution"

08-25-2011, 07:02 AM	#37
jmcdaniel Registered User Join Date: Jan 2009 Location: Celeste Texas Posts: 34	Re: Chevy 4.3 Liter V6 in one of our trucks Would any of you guys think of putting in a late model 4.3/700r4 combo in a 1/2 ton 67-72 suburban that would be used for cruising and daily driving? I don't need to go fast, but i don't want it to be a gutless burb. thx. __________________ 1963 C-10 custom cab on a 70 swb leaf spring frame, 283/3spd rat rod 1986 crewcab 3+3 camper special 454/400 pig rig (soon to be bagged)

08-25-2011, 10:38 AM	#38
patriot9879 Registered User Join Date: Jul 2011 Location: Denver, CO Posts: 7	Re: Chevy 4.3 Liter V6 in one of our trucks I think a F/I 4.3 in a C10 would be very comparable to the same engine in an S10. I think a burb would be a little heavy. The 4.3 has decent torque and would pair well with 3.42 (non od) or 3.73 (od) to get your mileage. It is definitely a much cheaper option than one of the LS series engines. As others have said, there are other options for more power, but I don't think the 4.3 would be "under powered". I would definitely look for a F/I motor. --Parker

08-25-2011, 07:26 PM	#39
richards72chevy Registered User Join Date: Dec 2010 Location: konawa ok/oakdale Ca. Posts: 1,650	Re: Chevy 4.3 Liter V6 in one of our trucks I think it would be pretty cool.I used to have an old truckin magazine there was 67 short step side that had a 4.3 v6.It had aliminum rims and a fiber glass front end.Im shure that took off alot of wieght.He said it got excellent mpg's!

08-25-2011, 09:30 PM	#40
eldogg Registered User Join Date: May 2007 Location: Mooresville NC/Gainesville GA Posts: 499	Re: Chevy 4.3 Liter V6 in one of our trucks I just finished a 2000 4.3 5 speed swap in a '77 Luv(I know it not a 67-72). It feel like it gonna be FAST. I think they were 190 hp. Thats more than a 307. __________________ Eric Evans Queen City Shop Truck http://67-72chevytrucks.com/vboard/s...34#post6139834 66 GMC http://67-72chevytrucks.com/vboard/s...d.php?t=543110



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