? on a 68 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sameyrasmea72 · 12-09-2006, 12:28 PM

I recently bought six 67-72 trucks for one guy and passed on 1 more because it was pretty rough and was really cover up in trees. The engines, especially the 327’s have been selling like hot cakes. On the truck that I passed on, it is a 68 and the glove box sticker says that it has a 350 in it. I thought a 68 should have a 283 or a 327 in it.

Is this a misprint on the sticker or could it actually be a 350 in 1968? Thanks for any help ……Jason

Pickles · 12-09-2006, 01:09 PM

chart from MorTec show this, but really need the casting # (imo)

CASTING#..SIZE...YEAR...MAIN CAP BOLTS
3914678....327.....68.........2
3914678....350.....68.........2
3931174....307.....68.........2...Truck

Aarons72s · 12-09-2006, 08:37 PM

Ive never herd of a 350 in a 68, stock, yet but maybe you could prove me wrong. Can we get a pic of the glove box to, please? I got to check this out.

mtndewmaniac66 · 12-09-2006, 09:08 PM

Maybe to the untrained eye it would look like a 350 engine. If we had some numbers we could tell ya what it was, HP, etc.

409biscayne · 12-09-2006, 09:27 PM

Maybe the wrong glove box door , i thought the only 68 with a 350 was an ss350 Camaro . None of the many 68's i've had came with a 350 , stock . Imo .
Doug.

Longhorn Man · 12-09-2006, 10:00 PM

it was not an RPO in trucks untill 69. If it is a COPO, it could be real.
Probably the wrong glove box door.

mtndewmaniac66 · 12-10-2006, 01:09 PM

After further thought, I can see how a '68 could have a 350. My truck is a good example of a factory ordered engine upgrade. I have, after extensive research, a Factory Blueprinted 300 HP 327, and after running the numbers, I have verified that I have a Corvette enine. The glovebox engine code is 04L30AC, the block casting number is 3914678, I have the casting numbers for the crankshaft, heads, and the 4-bbl intake somewheres misplaced. So seeing that a '68 C10 could very well have a factory ordered Camaro 350, especially when the 350 did come out in the Camaro in '68.

If at all possible, get some numbers off of the intake, crankshaft, block, and heads. This should determine what this "350" really is. I will keep in tune with this thread to see the developments.

Longhorn Man · 12-10-2006, 01:12 PM

it should say COPO on the spid label if it is true.
Did you match the VIN on the SPID to the VIN in the truck?

mtndewmaniac66 · 12-10-2006, 02:19 PM

Quote:

Originally Posted by Longhorn Man

it should say COPO on the spid label if it is true.
Did you match the VIN on the SPID to the VIN in the truck?

Refresh my memory, what is COPO, RPO, and SPID? I have been out of the loop for some time.

Longhorn Man · 12-10-2006, 02:30 PM

COPO
Central Office Production Order (COPO) This was originally intended for ordering odd ball fleets cars and trucks that did not meet the minstrream automotive needs.
Example, police cars needed coolers for the tranny like off a truck's towing package, springs off a station wagon, gears off a performance car, cloth seats in front an vinal bench in back... COPO could put it all on one car.
A few deaers figured they could order a factory built hot rod. For example, a stripped down nova with a 454... which wasn't avalible due to big engine/little car rules, but you could go through COPO and build one, from the factory, with waranty and everything.

RPO
RPO is Regular Production Option... any option avalible is given an RPO code. Z28 , 9C1, Z11... all started as RPO codes, but turned into performance names.... becouse the code included all the desirable parts for the given use. (Z-28 needs no explination, Z11 was a 427 powered chevy back in the day (or was it 409?) 9C1 is the police package for GM)
SPID
Special Product ID ... option sheet. It's the paper glued to the inside of the glove box lid.

409biscayne · 12-10-2006, 03:08 PM

SPID is Service Parts I.D. actually . It will have the Vin # typed on it , so it would need to match the vin on the truck , title , and stamped on the pad on the front of the engine , before you have something . However if it turns out to be a 68 350 out of a Camaro , the Camaro dudes will pay big bucks for that . Does it still have the factory intake on it ? Get us a cast nbr off of that and the date code , that should be fairly easy . Just my .02 .
Doug.

Longhorn Man · 12-10-2006, 04:17 PM

you are 100% correct, thanks for the correction

sameyrasmea72 · 12-10-2006, 09:11 PM

OK, I did go out there and check it out, at least what little I could check out. That thing is really covered up in trees. The doors as you can are at the moment un-open able, so I could not see the vin tag, and the hood opens up enough to see that the engine is still there. I literally had to stick my camera through the vent window to get some pics of the SPID.

According to the SPID I guess the glove box door is a 69. It’s that simple I guess!!. The truck has been parked here for 25 years or so. I am sure the body is a 68, at least it has side markers big window, correct 68 trim front end, and emergency brake to name some.

The funny thing is whoever put the glove box door on did a good job of matching up the equipment. This truck was white, had gauges, blue trim and had a radio, and that’s about it.

I must be missing something. Seeing the vin tag would help out a bunch. I guess I will have to once again break out the saws, axes and chains and go pull her out of there. I guess for $80 I need to get the truck anyway. Solving the mystery might be the incentive to get er done.

mtndewmaniac66 · 12-11-2006, 01:43 AM

Since we're covering options available on a '68, I will share my SPID with ya. Here are also some shots of the engine components that I still have left. I wish that I had the pics from before, but I lost all previous pics and information to a crashing computer.
Longhorn, let me know what you think of this.

72armyswbtruck · 12-11-2006, 03:15 AM

Hey, I know that this is going to sound silly but didn't GM produce a strange v-6 350?

lilpup69chevy · 12-11-2006, 03:23 AM

no but gmc had a v-6 305

Bishops Trucks · 12-11-2006, 05:14 AM

Quote:

Originally Posted by Longhorn Man

(Z-28 needs no explination, Z11 was a 427 powered chevy back in the day (or was it 409?) 9C1 is the police package for GM)
.

The Z11 was a 409 stroked to 427 and introduced into Nascar and NHRA in 1962. Any one could order this option RPO Z11 for $1240.00 price tag. A very rare motor to find these days. A total of 57 Z11's were ordered and only seven remain in existance. You are talking some big money if you have one stashed away somewhere.

Longhorn Man · 12-11-2006, 04:07 PM

so dew man... some one swapped your truck 327 for a vette motor at one point. Have you verified that this is in fact the original engine?

GMC had both 305 and 351 V-6 engines in these trucks.

12-09-2006, 12:28 PM	#1
sameyrasmea72 Senior Member Join Date: Aug 2003 Location: Lubbock, Texas Posts: 2,443	? on a 68 I recently bought six 67-72 trucks for one guy and passed on 1 more because it was pretty rough and was really cover up in trees. The engines, especially the 327’s have been selling like hot cakes. On the truck that I passed on, it is a 68 and the glove box sticker says that it has a 350 in it. I thought a 68 should have a 283 or a 327 in it. Is this a misprint on the sticker or could it actually be a 350 in 1968? Thanks for any help ……Jason Attached Images __________________ 72 Cheyenne Super 80 Silverado Blazer 2wd

12-09-2006, 01:09 PM	#2
Pickles Registered User Join Date: May 2006 Location: Dickson,Tn Posts: 811	Re: ? on a 68 chart from MorTec show this, but really need the casting # (imo) CASTING#..SIZE...YEAR...MAIN CAP BOLTS 3914678....327.....68.........2 3914678....350.....68.........2 3931174....307.....68.........2...Truck __________________ Pickles

12-09-2006, 08:37 PM	#3
Aarons72s Registered User Join Date: Apr 2006 Location: oklahoma Posts: 10,669	Re: ? on a 68 Ive never herd of a 350 in a 68, stock, yet but maybe you could prove me wrong. Can we get a pic of the glove box to, please? I got to check this out.

12-09-2006, 09:08 PM	#4
mtndewmaniac66 Do the Dew! Join Date: May 2005 Location: Vernal, Utah Posts: 191	Re: ? on a 68 Maybe to the untrained eye it would look like a 350 engine. If we had some numbers we could tell ya what it was, HP, etc. Last edited by mtndewmaniac66; 12-09-2006 at 09:10 PM. Reason: spelling errors. (tired)

12-09-2006, 09:27 PM	#5
409biscayne Senior Member Join Date: Nov 2005 Location: Spokane , Wash. Posts: 790	Re: ? on a 68 Maybe the wrong glove box door , i thought the only 68 with a 350 was an ss350 Camaro . None of the many 68's i've had came with a 350 , stock . Imo . Doug. __________________ Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD)

12-09-2006, 10:00 PM	#6
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: ? on a 68 it was not an RPO in trucks untill 69. If it is a COPO, it could be real. Probably the wrong glove box door.

12-10-2006, 01:09 PM	#7
mtndewmaniac66 Do the Dew! Join Date: May 2005 Location: Vernal, Utah Posts: 191	Re: ? on a 68 After further thought, I can see how a '68 could have a 350. My truck is a good example of a factory ordered engine upgrade. I have, after extensive research, a Factory Blueprinted 300 HP 327, and after running the numbers, I have verified that I have a Corvette enine. The glovebox engine code is 04L30AC, the block casting number is 3914678, I have the casting numbers for the crankshaft, heads, and the 4-bbl intake somewheres misplaced. So seeing that a '68 C10 could very well have a factory ordered Camaro 350, especially when the 350 did come out in the Camaro in '68. If at all possible, get some numbers off of the intake, crankshaft, block, and heads. This should determine what this "350" really is. I will keep in tune with this thread to see the developments. Last edited by mtndewmaniac66; 12-10-2006 at 01:14 PM. Reason: Lost weblink to substantiate my findings. Also cannot type c-r-a-n-k.

12-10-2006, 01:12 PM	#8
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: ? on a 68 it should say COPO on the spid label if it is true. Did you match the VIN on the SPID to the VIN in the truck? Last edited by Longhorn Man; 12-10-2006 at 01:13 PM.

12-10-2006, 02:30 PM	#10
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: ? on a 68 COPO Central Office Production Order (COPO) This was originally intended for ordering odd ball fleets cars and trucks that did not meet the minstrream automotive needs. Example, police cars needed coolers for the tranny like off a truck's towing package, springs off a station wagon, gears off a performance car, cloth seats in front an vinal bench in back... COPO could put it all on one car. A few deaers figured they could order a factory built hot rod. For example, a stripped down nova with a 454... which wasn't avalible due to big engine/little car rules, but you could go through COPO and build one, from the factory, with waranty and everything. RPO RPO is Regular Production Option... any option avalible is given an RPO code. Z28 , 9C1, Z11... all started as RPO codes, but turned into performance names.... becouse the code included all the desirable parts for the given use. (Z-28 needs no explination, Z11 was a 427 powered chevy back in the day (or was it 409?) 9C1 is the police package for GM) SPID Special Product ID ... option sheet. It's the paper glued to the inside of the glove box lid.

12-10-2006, 03:08 PM	#11
409biscayne Senior Member Join Date: Nov 2005 Location: Spokane , Wash. Posts: 790	Re: ? on a 68 SPID is Service Parts I.D. actually . It will have the Vin # typed on it , so it would need to match the vin on the truck , title , and stamped on the pad on the front of the engine , before you have something . However if it turns out to be a 68 350 out of a Camaro , the Camaro dudes will pay big bucks for that . Does it still have the factory intake on it ? Get us a cast nbr off of that and the date code , that should be fairly easy . Just my .02 . Doug. __________________ Can-Am Motorsports 37 Chev Coupe 331 4 speed 5.13 posi . ex-gasser . 64 Biscayne 409 2x4 4 speed 4.11 posi 65 Nova Wagon Drag Car 383 t400 (Dragin-Wagon) 68 c10 cst 396 t400 a/c buckets lwb 4.11 posi (SOLD)

12-10-2006, 04:17 PM	#12
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: ? on a 68 you are 100% correct, thanks for the correction

12-10-2006, 09:11 PM	#13
sameyrasmea72 Senior Member Join Date: Aug 2003 Location: Lubbock, Texas Posts: 2,443	Re: ? on a 68 OK, I did go out there and check it out, at least what little I could check out. That thing is really covered up in trees. The doors as you can are at the moment un-open able, so I could not see the vin tag, and the hood opens up enough to see that the engine is still there. I literally had to stick my camera through the vent window to get some pics of the SPID. According to the SPID I guess the glove box door is a 69. It’s that simple I guess!!. The truck has been parked here for 25 years or so. I am sure the body is a 68, at least it has side markers big window, correct 68 trim front end, and emergency brake to name some. The funny thing is whoever put the glove box door on did a good job of matching up the equipment. This truck was white, had gauges, blue trim and had a radio, and that’s about it. I must be missing something. Seeing the vin tag would help out a bunch. I guess I will have to once again break out the saws, axes and chains and go pull her out of there. I guess for $80 I need to get the truck anyway. Solving the mystery might be the incentive to get er done. Attached Images __________________ 72 Cheyenne Super 80 Silverado Blazer 2wd

12-11-2006, 01:43 AM	#14
mtndewmaniac66 Do the Dew! Join Date: May 2005 Location: Vernal, Utah Posts: 191	Re: ? on a 68 Since we're covering options available on a '68, I will share my SPID with ya. Here are also some shots of the engine components that I still have left. I wish that I had the pics from before, but I lost all previous pics and information to a crashing computer. Longhorn, let me know what you think of this. Last edited by mtndewmaniac66; 02-28-2008 at 01:55 AM.

12-11-2006, 03:15 AM	#15
72armyswbtruck Registered User Join Date: Feb 2004 Location: Idaho Posts: 4,033	Re: ? on a 68 Hey, I know that this is going to sound silly but didn't GM produce a strange v-6 350? __________________ "Remember, They can Kill You, but they can't eat You, That's against the law!!!!!!!!!"

12-11-2006, 03:23 AM	#16
lilpup69chevy 67-72 parts finder Join Date: Aug 2006 Location: southeast mo Posts: 788	Re: ? on a 68 no but gmc had a v-6 305 __________________ 1969 chevy shortstep 2wd (under construction) 1981 chevy scottsdale lwb 2wd (parts chaser) 2004 pontiac gto (daily driver) 2004 pontiac grand prix gt (the ol ladys car) 1985 chevy short wide 1970 chevy c10 lwb (another parts rig) 1969 gmc lwb (rainy day project) 1968 chevy lwb c10 250 I6 3 spd (soon to be swb)



Register or Log In To remove these advertisements.

12-11-2006, 04:07 PM	#18
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: ? on a 68 so dew man... some one swapped your truck 327 for a vette motor at one point. Have you verified that this is in fact the original engine? GMC had both 305 and 351 V-6 engines in these trucks.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Register or Log In To remove these advertisements.