WIW 348 GMC Big Block w/ Power Steering - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72armyswbtruck · 04-16-2007, 09:07 PM

OK, So I saved the motor, cab, and clip from an original 67 GMC. I have it listed for around $250. I figured that someone would love to have the clip.
So how much is this motor really worth?

7T2 · 04-16-2007, 09:23 PM

Is it a Chevy 348 or a Pontiac 347? GMC's came with pontiac 347s, but I'm not sure if a 67 would have that. I know earlier ones would.

348's are in more demand as 409's disappear. A good complete 348 might bring $1200-$1500.

Longhorn Man · 04-16-2007, 09:33 PM

67 wouldn't have a pontiac engine... I think that was only in the 60 - 66 models.

72armyswbtruck · 04-16-2007, 09:37 PM

OK, so it might be a 347?. I never heard of that one.
Where can I look. To fing out more info.
Now I am befuddled.

qksilver · 04-16-2007, 09:47 PM

55-59 GMC also came with the pontiac engine.......

72armyswbtruck · 04-16-2007, 09:49 PM

Such a plethera of knowledge. keep it coming.
Value anyone?

GREASEMONKEY72 · 04-16-2007, 09:51 PM

one thing you could do is look at the prices of 409s and look at the shape of them for the price, then look at your 348 and base a price from there

72armyswbtruck · 04-16-2007, 09:54 PM

Trying to do that. I was just really curious. Keep the all knowing info coming..........

O'l Buck · 04-16-2007, 10:05 PM

I had one dealt for for $175 about 8 years ago (chevy 348 with 3 deuces), but the guy sold it before I could get down there to pick it up. He said it ran, but smoked, had no stats on compression or oil pressure.

72armyswbtruck · 04-16-2007, 10:06 PM

Wish this one had the 3 dueces..

woodridge · 04-16-2007, 10:07 PM

Can you post a pic so we can see what it is?

72armyswbtruck · 04-16-2007, 10:12 PM

Pics will be coming tomorrow.

Bus Ted Knuckle · 04-16-2007, 10:18 PM

The 348 was introduced in 1958, the 409 in 1961. the 348 fell by the wayside after the 409 was introduced. February 1965 was the latest a 409 could be had in a new chevy. After that the 396 took its place.

As far as what is in your truck, try to get a pic and post it here. There is no telling what some PO has shoehorned in there in the last 40 years.

You can't mistake a 348/409. Those valve covers are like nothing else. I've had a few come through the shop over the years. I sold my last 348 about 6 months ago. here is a pic of a 409:

72armyswbtruck · 04-16-2007, 10:20 PM

What did it sell for?

Bus Ted Knuckle · 04-16-2007, 10:23 PM

It was in a rusted out 4 door sedan, not running, and it sold (car carcass and all) for $800 and change on that large unmentionable online flea market.

**special-K** · 04-16-2007, 10:55 PM

So,was this motor in an all original(other than motor)`67 GMC?The Pontiac motors were used in the`50s.

72armyswbtruck · 04-16-2007, 11:27 PM

Yup pretty much. As far as I could tell. Saved the Cab, Clip and motor from the crusher today. Right Place, Right Time.

**special-K** · 04-17-2007, 06:24 AM

Are you sure you`re not looking at a GMC V6?They look very simular,pretty much the same motor with 2 cyls. knocked off.

7T2 · 04-17-2007, 09:53 AM

If it's not a custom truck I doubt someone went to the trouble to swap in a 348, but who knows? 348's are heavy engines and would need different motor mounts, etc. to work.

348's and 409's are identical from the outside. The only way to tell them apart are casting numbers, or by looking at the end of the crank. They had dipsticks on opposite sides, but the oil pans (which the dipstick comes out of) are interchangeable, so that's not a reliable way to tell. The 348 or 409 is easily recognizable by its "W" head and valve cover, as mentioned before.

409's are a victim of scarcity and Barrett-Jackson Syndrome. These days you are lucky to touch a complete, running 409 for less than $4000, and that's a low performance one. The highest performance 409's can bring upwards of $12,000 in restored condition. 348's are identical with a smaller bore, so more and more people are looking at them to "clone" into 409's. They are also popular in street rods for their distinctive "look".

A picture would instantly reveal whether you have a 348 or not, although if you do have a "W" block in a 67 vehicle you might want to check to see if it is a 409.

3/4tonterror · 04-17-2007, 10:00 AM

sounds like a gmc 305 v6

**special-K** · 04-17-2007, 12:24 PM

These are off a 305(they thought they were economical back then

) :

Here`s a 305:

This is a 409/348 "W" head:

JAKES 68GMC · 04-17-2007, 01:35 PM

The GMC V6's and 348/409 Chevys may look a lot alike, but the GMC V6 is a completely different breed of animal. They are not a 349/409 with 2 cyls. cut off.

3/4tonterror · 04-17-2007, 02:02 PM

plaid v/covers?explain that!!!70s flash back.

7T2 · 04-17-2007, 07:40 PM

Quote:

Originally Posted by 3/4tonterror

plaid v/covers?explain that!!!70s flash back.

Too lazy to look it up, but I believe that was the most common factory finish for the valve covers on that particular engine.

Also, I think there was a rare 12 cylinder version of that 305 that was basically 2 blocks welded together, again from the factory.

7T2 · 04-17-2007, 08:02 PM

I had a few minutes to kill after all. Check it out:

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

I want to put one of those in an old hoodless rat rod!

04-16-2007, 09:07 PM	#1
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	WIW 348 GMC Big Block w/ Power Steering OK, So I saved the motor, cab, and clip from an original 67 GMC. I have it listed for around $250. I figured that someone would love to have the clip. So how much is this motor really worth? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 09:23 PM	#2
7T2 Active Member Join Date: Dec 2004 Location: Marysville, OH Posts: 667	Re: WIW 348 GMC Big Block w/ Power Steering Is it a Chevy 348 or a Pontiac 347? GMC's came with pontiac 347s, but I'm not sure if a 67 would have that. I know earlier ones would. 348's are in more demand as 409's disappear. A good complete 348 might bring $1200-$1500. __________________ 1957 GMC Ambulance 1962 Belair Wagon 1963 C80 Truck Cab FOR SALE 1969 Chevy C10 Short Bed 1972 Chevy C10 Long Bed SOLD 1996 C3500 Dually SOLD

04-16-2007, 09:33 PM	#3
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: WIW 348 GMC Big Block w/ Power Steering 67 wouldn't have a pontiac engine... I think that was only in the 60 - 66 models.

04-16-2007, 09:37 PM	#4
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering OK, so it might be a 347?. I never heard of that one. Where can I look. To fing out more info. Now I am befuddled. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 09:47 PM	#5
qksilver Senior Member Join Date: Dec 2004 Location: Southern Pines NC Posts: 3,853	Re: WIW 348 GMC Big Block w/ Power Steering 55-59 GMC also came with the pontiac engine.......

04-16-2007, 09:49 PM	#6
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering Such a plethera of knowledge. keep it coming. Value anyone? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 09:51 PM	#7
GREASEMONKEY72 Registered User Join Date: Aug 2006 Location: Bakersfield,CA Posts: 7,893	Re: WIW 348 GMC Big Block w/ Power Steering one thing you could do is look at the prices of 409s and look at the shape of them for the price, then look at your 348 and base a price from there __________________ -steven Alte Seele S.S. "Allison" '72 C/10 LWB 350SB/TH350 - DD PITBULL IS NOT A CRIME

04-16-2007, 09:54 PM	#8
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering Trying to do that. I was just really curious. Keep the all knowing info coming.......... __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 10:05 PM	#9
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	Re: WIW 348 GMC Big Block w/ Power Steering I had one dealt for for $175 about 8 years ago (chevy 348 with 3 deuces), but the guy sold it before I could get down there to pick it up. He said it ran, but smoked, had no stats on compression or oil pressure. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

04-16-2007, 10:06 PM	#10
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering Wish this one had the 3 dueces.. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 10:07 PM	#11
woodridge Senior Member Join Date: Feb 2005 Location: Maynardville, Tn Posts: 3,030	Re: WIW 348 GMC Big Block w/ Power Steering Can you post a pic so we can see what it is? __________________ SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet

04-16-2007, 10:12 PM	#12
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering Pics will be coming tomorrow. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 10:18 PM	#13
Bus Ted Knuckle Son of a gun Join Date: Jan 2007 Location: Hot Springs, Arkansas Posts: 1,636	Re: WIW 348 GMC Big Block w/ Power Steering The 348 was introduced in 1958, the 409 in 1961. the 348 fell by the wayside after the 409 was introduced. February 1965 was the latest a 409 could be had in a new chevy. After that the 396 took its place. As far as what is in your truck, try to get a pic and post it here. There is no telling what some PO has shoehorned in there in the last 40 years. You can't mistake a 348/409. Those valve covers are like nothing else. I've had a few come through the shop over the years. I sold my last 348 about 6 months ago. here is a pic of a 409: Attached Images __________________ Bill BEATERS ARE NEATER

04-16-2007, 10:20 PM	#14
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering What did it sell for? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-16-2007, 10:23 PM	#15
Bus Ted Knuckle Son of a gun Join Date: Jan 2007 Location: Hot Springs, Arkansas Posts: 1,636	Re: WIW 348 GMC Big Block w/ Power Steering It was in a rusted out 4 door sedan, not running, and it sold (car carcass and all) for $800 and change on that large unmentionable online flea market. __________________ Bill BEATERS ARE NEATER



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04-16-2007, 10:55 PM	#16
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: WIW 348 GMC Big Block w/ Power Steering So,was this motor in an all original(other than motor)`67 GMC?The Pontiac motors were used in the`50s. __________________ "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 ~

04-16-2007, 11:27 PM	#17
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,034	Re: WIW 348 GMC Big Block w/ Power Steering Yup pretty much. As far as I could tell. Saved the Cab, Clip and motor from the crusher today. Right Place, Right Time. __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

04-17-2007, 06:24 AM	#18
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: WIW 348 GMC Big Block w/ Power Steering Are you sure you`re not looking at a GMC V6?They look very simular,pretty much the same motor with 2 cyls. knocked off. __________________ "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 ~

04-17-2007, 09:53 AM	#19
7T2 Active Member Join Date: Dec 2004 Location: Marysville, OH Posts: 667	Re: WIW 348 GMC Big Block w/ Power Steering If it's not a custom truck I doubt someone went to the trouble to swap in a 348, but who knows? 348's are heavy engines and would need different motor mounts, etc. to work. 348's and 409's are identical from the outside. The only way to tell them apart are casting numbers, or by looking at the end of the crank. They had dipsticks on opposite sides, but the oil pans (which the dipstick comes out of) are interchangeable, so that's not a reliable way to tell. The 348 or 409 is easily recognizable by its "W" head and valve cover, as mentioned before. 409's are a victim of scarcity and Barrett-Jackson Syndrome. These days you are lucky to touch a complete, running 409 for less than $4000, and that's a low performance one. The highest performance 409's can bring upwards of $12,000 in restored condition. 348's are identical with a smaller bore, so more and more people are looking at them to "clone" into 409's. They are also popular in street rods for their distinctive "look". A picture would instantly reveal whether you have a 348 or not, although if you do have a "W" block in a 67 vehicle you might want to check to see if it is a 409. __________________ 1957 GMC Ambulance 1962 Belair Wagon 1963 C80 Truck Cab FOR SALE 1969 Chevy C10 Short Bed 1972 Chevy C10 Long Bed SOLD 1996 C3500 Dually SOLD

04-17-2007, 10:00 AM	#20
3/4tonterror Registered User Join Date: Dec 2006 Location: jaffrey,NH Posts: 325	Re: WIW 348 GMC Big Block w/ Power Steering sounds like a gmc 305 v6

04-17-2007, 12:24 PM	#21
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: WIW 348 GMC Big Block w/ Power Steering These are off a 305(they thought they were economical back then ) : Here`s a 305: This is a 409/348 "W" head: __________________ "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 ~

04-17-2007, 01:35 PM	#22
JAKES 68GMC Aluminum slot wheels rule... Join Date: Jan 2006 Location: Maine Posts: 6,212	Re: WIW 348 GMC Big Block w/ Power Steering The GMC V6's and 348/409 Chevys may look a lot alike, but the GMC V6 is a completely different breed of animal. They are not a 349/409 with 2 cyls. cut off. Last edited by JAKES 68GMC; 04-17-2007 at 01:38 PM.

04-17-2007, 02:02 PM	#23
3/4tonterror Registered User Join Date: Dec 2006 Location: jaffrey,NH Posts: 325	Re: WIW 348 GMC Big Block w/ Power Steering plaid v/covers?explain that!!!70s flash back.

04-17-2007, 08:02 PM	#25
7T2 Active Member Join Date: Dec 2004 Location: Marysville, OH Posts: 667	Re: WIW 348 GMC Big Block w/ Power Steering I had a few minutes to kill after all. Check it out: http://www.6066gmcguy.org/TwinSix.htm I want to put one of those in an old hoodless rat rod! __________________ 1957 GMC Ambulance 1962 Belair Wagon 1963 C80 Truck Cab FOR SALE 1969 Chevy C10 Short Bed 1972 Chevy C10 Long Bed SOLD 1996 C3500 Dually SOLD

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