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#1 |
Registered User
Join Date: Feb 2007
Location: west coast
Posts: 3,373
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Big 6 or V8
Time is 1967, before big block in pickups, what do you choose. Biggest six is 292, biggest V8 327. A magazine decided on doing a test on similar C 20''s with same trans, tires and axle ratio and throwing a camper on back. Results were interesting, V8 was a little quicker, but worse gas mileage. 6 performed better at lower rpms, with a little better gas mileage.
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#2 |
Registered User
Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,337
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Re: Big 6 or V8
Both engines are marginal cubic inch wise, for a pickup, my opinion. 327 would be smalles engine I'd every use. It just takes a goodly amount of torque to push a heavy pickup around. Needs to be 350 or larger. Yes, that's 67. I'm thinking now tough.
Yes less cubes will work....it's still a free country. I admire folks with 6 bangers, just like the olden days, cool! |
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#3 |
Registered User
Join Date: Oct 2016
Location: Dallas Texas
Posts: 3,092
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Re: Big 6 or V8
That's cool! Nowadays the Big Six has at least one turbo.
-klb
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67 C10 fleet fuel injected '70 402, 700r4, 3.73 posi 07 335 sport turbo 6sp 94 Trans Am GT LT1 6sp posi -- sold after 22yrs 99 540 sport V8 6sp -- sold 73 240z L24 4sp -- given to friend 68 C10 step 350/350 3.73 open -- sold |
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#4 |
Special Order
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Location: Mt Airy, MD
Posts: 85,859
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Re: Big 6 or V8
All brainwashing aside, both of those engines would still be more than adequate for today. Shoot, most new trucks out there don't haul more than a nickle by the time the payments are made. It's not like most are daily haulers like most old ones were, that did everything that was asked of them with ease and still can.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#5 |
Registered User
Join Date: Jan 2016
Location: Barber City, CA
Posts: 4,783
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Re: Big 6 or V8
interesting article, thanks for posting..
what if they had compared these, two years earlier? ![]() |
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#6 |
20' Daredevil (Ret)
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Location: Jefferson State
Posts: 13,643
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Re: Big 6 or V8
It's an understatement to note that trucks -- all vehicles, in fact -- were much more basic 50 years ago. And inflation has blown price comparisons out of the water.
But still.... less than $2600 for a new 6-cylinder truck and a hair over $2700 for a V8 model. Almost makes my head explode.
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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#7 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Re: Big 6 or V8
I think it's crazy I have a new GM that does 0-60 in 2.95 while our trucks took 24.5 seconds!
BTW, that $2700 in today's dollars (adjusted for CPI) would be just over $20,000, which you'd be hard pressed to buy a basic WT truck for, but it might be possible.
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1970 GMC Sierra Grande Custom Camper - Built, not Bought 1969 Pontiac 2+2 427/390 4-speed Coupe 1969 Pontiac 2+2 427/390 4-speed Convertible |
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#8 |
Registered User
Join Date: Mar 2013
Location: Campbellsville, KY
Posts: 888
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Re: Big 6 or V8
Cool comparison! Really neat to see how the two engines stacked up.
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Alex V. ------ 1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs. 1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue. |
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#9 |
Registered User
Join Date: Jun 2013
Location: West Virginia
Posts: 6,421
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Re: Big 6 or V8
Make mine a 292 with 3OTT and overdrive (only available on 1/2 ton I think).
292 with 4-speed in floor would be another pick. 3.73 rear end unless I lived where my truck ended up, then the 4.11 is needed because hills are curvy, steep, and common. No interstate here in 1972. If my 250 ever goes out I hope to replace it with a 292. I would have sprung for the 1 ton stepside also. |
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#10 |
Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: Big 6 or V8
They should have thrown a 351E in the mix as well - I bet it would have beat both...
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#11 |
Senior Member
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Location: Colfax-California
Posts: 8,550
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Re: Big 6 or V8
292 with some added goodies, 4.11 gearing, turbo 400 with an overdrive or a 4l80e. I would love to get my hands on a complete 292.
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#12 |
Registered User
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Location: KINGSPORT,TN.
Posts: 3,035
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Re: Big 6 or V8
292,s suck the gas
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I BELIEVE IN JOHN 3:16 |
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#13 |
Senior Member
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Location: Los Angeles
Posts: 1,332
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Re: Big 6 or V8
I was going to say that! Wonder how a 305 V-6 would have compared, probably very similar to the 292 I would imagine.
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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. |
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#14 |
Senior Member
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Location: Colfax-California
Posts: 8,550
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Re: Big 6 or V8
My first truck was a 69 GMC 3/4 ton with the 351 V6 and a 4 speed. Had 3 fuel tanks and you sure needed them all. I think the truck got about 7-8 mpg on a good day.
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#15 |
Registered User
Join Date: Jun 2013
Location: West Virginia
Posts: 6,421
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Re: Big 6 or V8
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#16 |
Registered User
Join Date: Jan 2011
Location: Townsend MT
Posts: 1,725
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Re: Big 6 or V8
You do realize that transmission and rear end gearing has more to do with fuel fuel mileage than engine selection? If you bought a truck with a 351, chances are, you bought it to haul heavy with 4.56 or 4.88 rear gears. Even if you had a 230 with those gears, it's going to suck fuel.
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#17 | |
Senior Member
![]() Join Date: Mar 2003
Location: Colfax-California
Posts: 8,550
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Re: Big 6 or V8
Quote:
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#18 | |
Registered User
Join Date: Jan 2016
Location: Barber City, CA
Posts: 4,783
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Re: Big 6 or V8
ran across this in the craigslist thread.. someone hook it up already!
1968 GMC 351c V6 - $500 Quote:
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