A F/I 4.3 V6 in a 1/2 ton suburban? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jmcdaniel · 08-29-2011, 10:00 PM

Has anyone or would anyone put a 4.3 fuel injected V6 in a 1/2 ton suburban with an overdrive tranny? I know they are pretty inexpensive to come by and it would be to make the burb just a dependable daily driver. I don't need a tire burning hot rod. any thoughts would be helpful. thx.

Grimpala · 08-30-2011, 08:27 PM

If you want to try I know where you can get ahold of a complete 4.3L and a 4L60E with most of the harness and the computer and all accessories. I think he'll sell it pretty cheap.

jmcdaniel · 08-30-2011, 08:52 PM

Where is it located? I don't really need the 4.3 right now but the 4l60E will come in handy when i do the 5.3 conversion in my 63 swb. let me know. thanks. BTW, are you going to Invasions car show this weekend at deep ellum.

zellway · 12-30-2011, 12:46 PM

I used to have a 2001 s-10 4wd blazer and it was not a bad little truck. Not the best on fuel if that was what you are wanting to try I was talking to a guy up the road from me that is running a 4.8 / 4l60E from a 2000 GMC full size in his 71 C10 sub and is getting almost 20mpg in town and about 22 to 23 on the highway.

capev86 · 01-07-2012, 12:17 AM

i think that v6 is a little too underpowered for a full size truck unless you live in a flat area and never tow anything. my dad swapped his 87 burb from a 3.08 (ex texas truck) to a 3.73 rear and mileage didn't change.

his current truck, a 99 burb, will get 20-22mpg. factory fuel injected 5.7, 2wd, 3.42 rear. dang thing is taching 1600rpm at 60mph. even my taurus wagon is turning 2k at that speed. anyway...used it tow a (rust free) dodge aries parts car home to Maine from North Carolina last week. using overdrive and not pushing it on hills (so it doesn't shift down), i got 16+mpg. that was without cruise control (this is a base model truck) and just keeping it to a steady 60-65 mph on the flats.

just don't get me started about the @#$%& in Maryland who cut me off at the very last second to catch the off ramp (after 3 other cars passed me and then promptly got off at the same place...WTF????). the truck has good brakes, but towing that extra 3k dead load is not fun when you have to throw on the binders . and i thought MASS drivers were bad!!!

in contrast, my 72 Burb C20, 307, 3 on the tree and 4.57 rear would get 10-11mpg and even now it is like 13-14 with a 4.10 gear swap in the old HO52. can't wait to get my borg warner equipped saginaw installed.

08-29-2011, 10:00 PM	#1
jmcdaniel Registered User Join Date: Jan 2009 Location: Celeste Texas Posts: 34	A F/I 4.3 V6 in a 1/2 ton suburban? Has anyone or would anyone put a 4.3 fuel injected V6 in a 1/2 ton suburban with an overdrive tranny? I know they are pretty inexpensive to come by and it would be to make the burb just a dependable daily driver. I don't need a tire burning hot rod. any thoughts would be helpful. 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)

08-30-2011, 08:27 PM	#2
Grimpala Registered User Join Date: Jan 2011 Location: Rockwall, TX Posts: 84	Re: A F/I 4.3 V6 in a 1/2 ton suburban? If you want to try I know where you can get ahold of a complete 4.3L and a 4L60E with most of the harness and the computer and all accessories. I think he'll sell it pretty cheap.

08-30-2011, 08:52 PM	#3
jmcdaniel Registered User Join Date: Jan 2009 Location: Celeste Texas Posts: 34	Re: A F/I 4.3 V6 in a 1/2 ton suburban? Where is it located? I don't really need the 4.3 right now but the 4l60E will come in handy when i do the 5.3 conversion in my 63 swb. let me know. thanks. BTW, are you going to Invasions car show this weekend at deep ellum. __________________ 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)

12-30-2011, 12:46 PM	#4
zellway Registered User Join Date: Dec 2009 Location: Arizona City, AZ Posts: 747	Re: A F/I 4.3 V6 in a 1/2 ton suburban? I used to have a 2001 s-10 4wd blazer and it was not a bad little truck. Not the best on fuel if that was what you are wanting to try I was talking to a guy up the road from me that is running a 4.8 / 4l60E from a 2000 GMC full size in his 71 C10 sub and is getting almost 20mpg in town and about 22 to 23 on the highway. __________________ ----------------------------------------------------------- Erik My 69 suburban http://67-72chevytrucks.com/vboard/s...d.php?t=530626 1970 C10 step Project Jiminy http://67-72chevytrucks.com/vboard/s...d.php?t=682647 RUST!? Thats just mother natures way of telling all of us.....MINE!!!!

01-07-2012, 12:17 AM	#5
capev86 Registered User Join Date: May 2009 Location: Eliot, Maine Posts: 1,314	Re: A F/I 4.3 V6 in a 1/2 ton suburban? i think that v6 is a little too underpowered for a full size truck unless you live in a flat area and never tow anything. my dad swapped his 87 burb from a 3.08 (ex texas truck) to a 3.73 rear and mileage didn't change. his current truck, a 99 burb, will get 20-22mpg. factory fuel injected 5.7, 2wd, 3.42 rear. dang thing is taching 1600rpm at 60mph. even my taurus wagon is turning 2k at that speed. anyway...used it tow a (rust free) dodge aries parts car home to Maine from North Carolina last week. using overdrive and not pushing it on hills (so it doesn't shift down), i got 16+mpg. that was without cruise control (this is a base model truck) and just keeping it to a steady 60-65 mph on the flats. just don't get me started about the @#$%& in Maryland who cut me off at the very last second to catch the off ramp (after 3 other cars passed me and then promptly got off at the same place...WTF????). the truck has good brakes, but towing that extra 3k dead load is not fun when you have to throw on the binders . and i thought MASS drivers were bad!!! in contrast, my 72 Burb C20, 307, 3 on the tree and 4.57 rear would get 10-11mpg and even now it is like 13-14 with a 4.10 gear swap in the old HO52. can't wait to get my borg warner equipped saginaw installed.



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