Six Cylinder Six Wheeler

GMC was first among American truck makers with a gasoline V6. But does this 1967 GMC EM5700 have the 305, 351, 401 or 478 cubic inch version? Only the S.P.I.D. knows for sure. What’s a S.P.I.D.? Watch and see!

[jonbender]

My neighbor used to have one of these trucks for farm use. I used to borrow it from him to haul firewood in the late 80s. It had a steel dump bed with wooden sides. We would load it down heavily, and it would do just fine. It didn't break any speed records, but it would take you and bring you home. It was a reliable truck that you could count on. My neighbor had that truck from the early 70s into the early 90s.

[streetpilot]

Extended bumpers were also popular with large fleets back in the day. In the event of a minor crash, they were much cheaper to replace than a fiberglass hood

[charlesdalton]

This video is another perfect example of what makes this channel so interesting. The breadth of vehicles covered, and the amount of information one can learn, is outstanding. Thank you for all the work that goes into this. ~ Chuck

[hammondc]

Hi Steve. Love the junkyard crawl. Watch every day. Surprised U didn't mention the 2-speed rear axle. An interesting feature providing 10-speeds forward. (And 2-speeds reverse I'd guess, but I never experimented during the short time I drove a "5 and 2" before moving to a 13-speed Roadranger.)

[edwardpate]

Surprised you didn't call out that it also has a 2 speed rear axle. I will say that truck looks pretty restorable!

[jeffchattin]

I owned several of these trucks both gas and diesel. They really drove nice and we’re very comfortable. I wish I had kept one to show !

[ultraviolettp]

I want to thank you for continuing to do these videos. You offering details and information that is interesting and turns even ordinary vehicles into something special. Thank you for your channel and efforts! Love when you are on the car auctions on tv!

[wills.]

I am a trucker by trade and I really enjoyed the trucks Steve has covered in his videos. That's a real truck. What I drive now is basically plastic.

[chrisscearce]

Hi Steve, great video on this GMC truck and V6 engine. My only experience with the GMC V6 was in a 64 3/4 ton long wheel base panel truck. I bought it from a school bus and surplus auction. School bus yellow, and it had 2 vertical heavy gauge steel, padded with truck tires push bar. I was told it was used to push start buses, and that was its only job other than maybe a run to get parts, etc. It also had the sub-low 4spd transmission. It had no rust and perfect body. Sold it to a rock/punk band, and the spray canned the thing black with the bands name on the door. It probably got 8-10mpg. The GMC truck my grandfather had one, but I believe it was a late 70s early 80s model, and it had the Detroit 2 stroke V8 "screamin jimmy." He used it to pull a low boy equipment trailer. Those 2-stroke were cool, sounding for sure, and easily identifiable. You could hear him a few miles away coming up through town, trying not to be a nuisance. 2 straight pipes sticking up in the sky with a trail of black smoke with each gear change. One yr he used it in the town's Christmas parade. He played Santa that yr with my uncle driving the GMC. You could see the tall chrome stacks off in the distance, bringing up the rear of the parade puffing black smoke like a darn dragon coming down Main. My grandfather was a big man. His hand was almost double the size of an average man. If he grabbed you, it was his decision, not yours, on what direction you were heading to next. It's probably why he liked Imperials and Big Chryslers so much plenty of room to move around in. Stay warm up there Steve last I looked it was 8° in Massachusetts, and never got above °0 in Maine. Burrr 🥶 Have a blessed day, everyone, Namaste 🙏🏼

[joecummings]

I had one of those that was a single axle dump with a 305. The engine got really tired and used lots of oil and had a huge amount of blowby. A regular customer of mine came in and was talking to me and told me he thought he had one of those engines in an old truck. I went and looked at it and gave him 200 bucks for it. Well when it was in my shop I noticed it had a dual thermostat housing. I kind of remembered that that meant something. I checked and it was a 478. That engine ran so good, so much torque I almost never had to shift down for anything

[jeffjenson]

I still have my dad's '69 GMC grain truck with the 401 V6. Future project probably. My best memory was when I was 16 and my parents were shopping for a different station wagon. Dad would ride beside me as I gave prospective Celebrities and Cutlass-Cierras the 0-50 test (he wouldn't let me go 60, that would be speeding you know). All those 4 banger GM wagons took about 14 seconds. Dad sat next to me in the GMC and we did it in just under 12. I think I started in 3rd High. That thing would run circles around his other truck with the 350 Chevy.

[xfactorautomotive]

Them GMC V6's we're plenty powerful and torquey, but with pistons the size of coffee cans, not really the fuel sippers you'd expect.
And, holy cow...a green Chevy citation in front of that truck! I haven't seen one of them in 20 years!

[elfritts]

Whew I thought Steve abandoned me today I like to watch while I enjoy my morning coffee but the coffee was gone at 7am central time

[joshuagibson]

That truck is in pretty good shape. Very very save able. I'm not saying in an original sense, but that truck can live on, no problem. I hope it does.

[rcnelson]

Those are fascinating junk yards because of their vehicles. Around here you're lucky to find anything older than 1990.

[derrickodyes]

I remember a 1970 gmc 9500 longnose with a 12v92 detroit hauling dirt by the house back in the 80s i thought what a sweet truck and have wanted one since

[chipper]

“Ok there t is….” Love that phrase, it means the heart is still there.

[mikeperry]

I was waiting on the two speed rear explanation. I run an 89 GMC 5 ton.

[frederickhettesheimer]

My local fire department had a 1968 gmc pick up with the v6 converted to a small fire truck to fight brush fires in the woods. It was a beast

[JCVACCARO]

I've known about these engines but I never knew they were 60 degree. Thanks for the video