Vortec V6 in a '66?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

taclem · 08-23-2009, 12:30 PM

Has anyone looked into installing a newer V6 into one of our trucks? I was thinking of a Camaro or something like that with a 5 speed. Does anyone make anything to hook up the fuel inj. etc. I would like the increased horsepower but would also like increased fuel economy. It would give me overdrive, the sound of a 6 split exhaust and something different all at the same time. Hopping up my 292 is quite expensive for the horsepower gain, and I would still be needing another gear or two for any kind of mileage. I have a short stepside 66 with a 292 and a car 4 speed saginaw. Thanks, taclem

63 & 64 Bowties · 08-23-2009, 12:35 PM

If you take a look at some of the builds over on the 47-59 section of this board, there's several guys who have done the S-10 swap and kept the V6. sgtusmc is one, but if I remember right, his is a 2.8 but there are others who have used the 4.3

502tripower · 08-23-2009, 01:00 PM

4.3 would be the way to go. Bolts right in using the same mounts as SBC.

TwoFiftyShifter · 08-23-2009, 04:13 PM

The 4.3 is great, my friends has one in his S10 with a 5speed an 3.08 rear, gets 20mpg+ everywhere he goes. Pretty decent power too.

502tripower · 08-23-2009, 04:58 PM

Quote:

Originally Posted by TwoFiftyShifter

The 4.3 is great, my friends has one in his S10 with a 5speed an 3.08 rear, gets 20mpg+ everywhere he goes. Pretty decent power too.

The 4.3 (262ci) is the same bore and stroke as a 350. 4.00 bore 3.48 stroke. They just cut off two cylinders. It is a great engine. Here is a good formula that is easy to use to figure out Cubic Inch Displacement. This Formula is for 8 cylinders.
Bore X Bore X Stoke X 6.2832 (Common Denominator for V8)=CI

If you need to calculate for more or less cylinders divide the CD 6.2832 by 8 then multiply by the # of cylinders you are working with. This will give you the new CD for your equation.

creep · 08-24-2009, 04:49 PM

Quote:

Originally Posted by TwoFiftyShifter

The 4.3 is great, my friends has one in his S10 with a 5speed an 3.08 rear, gets 20mpg+ everywhere he goes. Pretty decent power too.

Sounds just like mine. I put a K&N intake, JBA headers and a Magnaflow exhaust on mine and it sounds awesome now. Fun to drive and gets decent mileage.

c10addict · 08-25-2009, 08:02 AM

I am in the process of putting my 54 GMC on an S10 chassis... I am keeping the 4.3 and 4L60E tranny... I bought my wiring harness from Fuel Injection Specialities in Texas.. I know it ran really strong in the S10 so I am thinking the GMC is not too much heavier.. I am still in the process of cleaning it up.. I cut an oil bath air cleaner apart and put a air filter in it and the top engine cover sitting on the engine now is off of a BMW and I put a GMC badge in the center.

TwoFiftyShifter · 08-23-2009, 10:19 PM

Yep, same bore and all.

Eagar1 · 08-23-2009, 10:48 PM

4.3 is an awesome motor, as said it is basically a V8 cut short and you can use many of the same bolt on accessories. Only thing you may need to accomodate for is the cooling fan, it may be too far away from the radiator, and you may want to just use an electirc fan.

**ChiefRocka** · 08-24-2009, 12:12 AM

That would be a great idea...in fact, I have a 2000 4.3 Vortec I was saving for a Samurai project that I might be willing to let go !!

Complete with 'stand-alone' wiring harness...ready to go !!!

502tripower · 08-24-2009, 03:03 AM

Quote:

Originally Posted by Eagar1

Only thing you may need to accomodate for is the cooling fan, it may be too far away from the radiator, and you may want to just use an electirc fan.

All of the V8 accessories bolt right on. Use a fan shroud from a 85-up blazer or C10 that was equipped with 4.3.

08-23-2009, 12:30 PM	#1
taclem Registered User Join Date: Aug 2009 Location: Preston, ID Posts: 123	Vortec V6 in a '66?? Has anyone looked into installing a newer V6 into one of our trucks? I was thinking of a Camaro or something like that with a 5 speed. Does anyone make anything to hook up the fuel inj. etc. I would like the increased horsepower but would also like increased fuel economy. It would give me overdrive, the sound of a 6 split exhaust and something different all at the same time. Hopping up my 292 is quite expensive for the horsepower gain, and I would still be needing another gear or two for any kind of mileage. I have a short stepside 66 with a 292 and a car 4 speed saginaw. Thanks, taclem

08-23-2009, 12:35 PM	#2
63 & 64 Bowties and a few others Join Date: Jun 2007 Location: Blue Ridge Mountains of VA Posts: 5,638	Re: Vortec V6 in a '66?? If you take a look at some of the builds over on the 47-59 section of this board, there's several guys who have done the S-10 swap and kept the V6. sgtusmc is one, but if I remember right, his is a 2.8 but there are others who have used the 4.3 __________________ Bill US Army Vet -193rd Infantry BlueRidgeMuscleCars.com “The greatness of a nation and its moral progress can be judged by the way its animals are treated” Gandhi

08-23-2009, 01:00 PM	#3
502tripower Registered User Join Date: Jan 2008 Location: Satsop, WA Posts: 606	Re: Vortec V6 in a '66?? 4.3 would be the way to go. Bolts right in using the same mounts as SBC. __________________ 1963' Chev Custom Cab 502, 67' 435hp 3X2 intake, 9" 4:30 Posi 1961 Impala SS 348/350 4-speed 3:70 Posi 1961 Bel-Air Bubble Top 283 Turboglide soon to have a 348 3X2 4-speed 1950 17' Fairliner twin cockpit barrel stern 312 Y block 1X1 intake Borg Warner 1:1 gear 1957 Fleetform 14' twin cockpit barrel stern 1969 BP-125 Merc 1949 Transitier 3-wheel forklift Crosley 4-Banger 98' FXD 2002 2500HD

08-23-2009, 04:13 PM	#4
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Re: Vortec V6 in a '66?? The 4.3 is great, my friends has one in his S10 with a 5speed an 3.08 rear, gets 20mpg+ everywhere he goes. Pretty decent power too. __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!

08-25-2009, 08:02 AM	#7
c10addict Registered User Join Date: Aug 2007 Location: pittsburgh pa Posts: 1,970	Re: Vortec V6 in a '66?? I am in the process of putting my 54 GMC on an S10 chassis... I am keeping the 4.3 and 4L60E tranny... I bought my wiring harness from Fuel Injection Specialities in Texas.. I know it ran really strong in the S10 so I am thinking the GMC is not too much heavier.. I am still in the process of cleaning it up.. I cut an oil bath air cleaner apart and put a air filter in it and the top engine cover sitting on the engine now is off of a BMW and I put a GMC badge in the center. Attached Images __________________ 68 C10 Shorty TPI,Bagged, and all the good stuff. Classic trucks feature June 06, On the cover of Jegs Christmas Catalog 08 67 C10 Shorty Shop truck project Bagged and Z'd under destruction and getting nowhere fast. 64 C10 Shop Truck/Daily driver, Bagged, Dropmember, SOLD!!!! Gone but not forgotten.. 54 GMC under the knife getting a S10 chassis swap and bagged. See my build thread... 07 GMC Sierra 5/7 drop, 22's and 24's Air ride on my mind.. http://67-72chevytrucks.com/vboard/s...d.php?t=339340 See pics of my trucks in my profile

08-23-2009, 10:19 PM	#8
TwoFiftyShifter Registered User Join Date: Nov 2008 Location: Gwinnett GA Posts: 1,803	Re: Vortec V6 in a '66?? Yep, same bore and all. __________________ 1982 K10 SWB 1987 V20 - Sold - Doh!

08-23-2009, 10:48 PM	#9
Eagar1 Registered User Join Date: Sep 2006 Location: Las Vegas, NV Posts: 169	Re: Vortec V6 in a '66?? 4.3 is an awesome motor, as said it is basically a V8 cut short and you can use many of the same bolt on accessories. Only thing you may need to accomodate for is the cooling fan, it may be too far away from the radiator, and you may want to just use an electirc fan.

08-24-2009, 12:12 AM	#10
ChiefRocka Hollister, CA. Join Date: Sep 2006 Location: Hollister, Ca. Posts: 6,150	Re: Vortec V6 in a '66?? That would be a great idea...in fact, I have a 2000 4.3 Vortec I was saving for a Samurai project that I might be willing to let go !! Complete with 'stand-alone' wiring harness...ready to go !!! __________________ John What the Heck is that ?? CURRENT BUILDS: 62 BurbMaster Other Builds: My '63 C-10,LWB,CC,BBW '06 HD StrAight Axle Swap Father/Son '67 C-20, LQ9,4L80,Bagged,8-Lugger !!Good Friend Richard's Build AMERICAN CUSTOMS & CLASSICS (831) 630-1965 www.ACCHOLLISTER.com ACC on FACEBOOK "Rest in Peace, Mom & Dad ... I will see you again someday!"

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