351 V-6 in a pick-up. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**WorkinLonghorn** · 02-26-2007, 06:29 PM

I was out at the sod farm,which is a virtual rolling museum of old trucks,and this one guy next to me had another Custom Camper that looked just like mine(only restored!). So I was talking to him about it and he tells me it has the rare 351 V-6 option. I've heard of 305 V-6s in a Pick-up but never a 351.None of the literature I've seen ever mentioned this option except in a medium-duty truck. He wasn't too impressed with the gas mileage as I recall,and was thinking about switching to a 350. Has anybody else seen one of these?

Longhorn Man · 02-26-2007, 06:33 PM

yep. They were optional on the 1 tons, and i *THINK* 3/4 ton trucks up untill 70 or so.
GMC only, just like the 305

TP from Cntl PA · 02-26-2007, 06:46 PM

V-6's are pretty hard on fuel compared to a small block, atleast the one I have is compared to the SB's I've had. BUT, you give me an option of a 351 over a 350 SB, I'll take the V-6 any day of the week in a pickup.

90% of the time my V-6 is running its loaded, so that may explain the higher fuel consumption. That, and I pull the crap out of it on hills.

**WorkinLonghorn** · 02-26-2007, 08:12 PM

Thanks guys. Sounds like some kind of super durable torque monster. Anybody know the bore+stroke? Just curious.

jeffspower · 02-26-2007, 08:41 PM

Just about everything you would want to know can be found here:

http://www.6066gmcguy.org/EngineData.htm

**WorkinLonghorn** · 02-26-2007, 09:58 PM

Good link,thanks. I notice it (351E) makes 304 net ft.lbs. torque at 1600 RPM !

WyoRoadDog · 02-27-2007, 12:07 AM

Good lord willing and the creeks don't rise, I'm picking up a 351 for my truck soon! Not sure if I'm just going to use the top end, or swap the whole thing. Would be an easier decision, but my 305 is part way through its rebuild already.

**Bob B.** · 02-27-2007, 12:14 AM

The 351 was available in '66, '67, and '68. It was basically replaced by the 396. The 305 was available until March of '69, so you will see a '69 GMC once in a while with a 305.

JAKES 68GMC · 02-27-2007, 04:36 PM

Yeah, them old V6's are torque monsters. I'm pulling mine for a 350 SBC, but down the road, I'll rebuild the 305 and put it back in. If you do get the 351, get and adapter made so you can put on a Holley 500 2bbl. Theres a night and day difference between the Holley and a Stromberg.

WyoRoadDog · 02-27-2007, 10:43 PM

Quote:

Originally Posted by JAKES 68GMC

If you do get the 351, get and adapter made so you can put on a Holley 500 2bbl.

I'm actually going to pursue a TBI setup. Why?... because I like to make things hard I guess!
As for gears, it's a 4x4, currently with 3.54's, but I'm looking for 3.73's, hopefully in newer diff's with disc front and open knuckle. The plan is that this isn't meant to be much of a highway cruiser. If I go with 16" tires like I want, I should be able to run about 80mph at 3500rpm, perfectly fine for getting me to the hills or around town.

Fred T · 02-27-2007, 06:45 PM

The 351 can get decent milage with the right gearing. I wouldn't hesitate to go with either an od tranny or 3.07 gears. We had a 69 2 ton flatbed that would get 12-14 on the highway. Don't know what the final gear ratio was, but it would run 100 mph. Pretty good milage for pushing a brick through the air.

68C15 · 02-27-2007, 11:56 PM

what I wanna know is when we are gonna see these heavy loads that TP is always pulling.

TP from Cntl PA · 02-28-2007, 09:35 PM

Quote:

Originally Posted by 68C15

what I wanna know is when we are gonna see these heavy loads that TP is always pulling.

Did have some pictures...............I think I lost them when I swapped puters because I can't find them. We farmed so they got used hard.........Actually, some of the weights we grossed rolling over the scales at the farm were downright abuse.

02-26-2007, 06:29 PM	#1
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	351 V-6 in a pick-up. I was out at the sod farm,which is a virtual rolling museum of old trucks,and this one guy next to me had another Custom Camper that looked just like mine(only restored!). So I was talking to him about it and he tells me it has the rare 351 V-6 option. I've heard of 305 V-6s in a Pick-up but never a 351.None of the literature I've seen ever mentioned this option except in a medium-duty truck. He wasn't too impressed with the gas mileage as I recall,and was thinking about switching to a 350. Has anybody else seen one of these? __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

02-26-2007, 06:33 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: 351 V-6 in a pick-up. yep. They were optional on the 1 tons, and i THINK 3/4 ton trucks up untill 70 or so. GMC only, just like the 305

02-26-2007, 06:46 PM	#3
TP from Cntl PA Registered User Join Date: Apr 2003 Location: Central PA....In the Berg of Nisbet Posts: 790	Re: 351 V-6 in a pick-up. V-6's are pretty hard on fuel compared to a small block, atleast the one I have is compared to the SB's I've had. BUT, you give me an option of a 351 over a 350 SB, I'll take the V-6 any day of the week in a pickup. 90% of the time my V-6 is running its loaded, so that may explain the higher fuel consumption. That, and I pull the crap out of it on hills. __________________ '72 K-20 EFI'ed 250 Inline/4spd stake body, Farm Truck '71 C-20 Cummins Diesel Powered, In storage thanks to $5.00 diesel! '69 3500 GMC 305V-6/4spd, Still under reconstruction.......... Inlines Rule! 6 soldiers standing is better than 8 laying down!!!!!!!!

02-26-2007, 08:12 PM	#4
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	Re: 351 V-6 in a pick-up. Thanks guys. Sounds like some kind of super durable torque monster. Anybody know the bore+stroke? Just curious. __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

02-26-2007, 08:41 PM	#5
jeffspower Well, Whoop-dee-do! Join Date: Mar 2003 Location: Easton, Mo. pop.- me & scarcely a few others Posts: 2,302	Re: 351 V-6 in a pick-up. Just about everything you would want to know can be found here: http://www.6066gmcguy.org/EngineData.htm __________________ '68 GMC shortbox 4x4 350/SM465/T221- bought it in '83 SOLD '72 K20 500 Cad/TH400/NP205 SOLD '92 Chevy 2500 6.5 mech TD 4L80E crusty daily driver '72 Monte Carlo... sweet low mile toy '11 Dodge Challenger IE 392 6spd... midlife car

02-26-2007, 09:58 PM	#6
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	Re: 351 V-6 in a pick-up. Good link,thanks. I notice it (351E) makes 304 net ft.lbs. torque at 1600 RPM ! __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

02-27-2007, 12:07 AM	#7
WyoRoadDog Page intentionally left blank. Join Date: Jul 2006 Location: Laramie, WY Posts: 299	Re: 351 V-6 in a pick-up. Good lord willing and the creeks don't rise, I'm picking up a 351 for my truck soon! Not sure if I'm just going to use the top end, or swap the whole thing. Would be an easier decision, but my 305 is part way through its rebuild already. __________________ There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable.There is another theory which states that this has already happened. - Douglas Adams '67 GMC 4x4, 305 V6! Or all the parts for anyway... '17 Subaru Outback. '18 Toyota Tacoma TRD Off Road. '99 Ducati 900SS.

02-27-2007, 12:14 AM	#8
Bob B. Senior Member Join Date: Aug 2005 Location: Los Angeles Posts: 1,349	Re: 351 V-6 in a pick-up. The 351 was available in '66, '67, and '68. It was basically replaced by the 396. The 305 was available until March of '69, so you will see a '69 GMC once in a while with a 305. __________________ 1967 GMC CM-2500 Camper Cruiser, 351E V-6, NP 435 4 speed, Dana 60, and factory A/C. 2012 GMC K-3500 WT regular cab, 6.0L Vortec, 6L90.

02-27-2007, 04:36 PM	#9
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: 351 V-6 in a pick-up. Yeah, them old V6's are torque monsters. I'm pulling mine for a 350 SBC, but down the road, I'll rebuild the 305 and put it back in. If you do get the 351, get and adapter made so you can put on a Holley 500 2bbl. Theres a night and day difference between the Holley and a Stromberg.

02-27-2007, 06:45 PM	#11
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Re: 351 V-6 in a pick-up. The 351 can get decent milage with the right gearing. I wouldn't hesitate to go with either an od tranny or 3.07 gears. We had a 69 2 ton flatbed that would get 12-14 on the highway. Don't know what the final gear ratio was, but it would run 100 mph. Pretty good milage for pushing a brick through the air. __________________ Fred There is no such thing as too much cam...just not enough engine.

02-27-2007, 11:56 PM	#12
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	Re: 351 V-6 in a pick-up. what I wanna know is when we are gonna see these heavy loads that TP is always pulling.



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