#3 1968 c20 cst - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BoneSaw · 04-09-2016, 03:53 PM

First 2x4.
Stock 327 TH350
It's all there but one piece of molding. If you can spot it and you got it, I want it haha.
With keeping the stock intake manifold on how much horsepower can I get outa this motor with a rebuild? What should be done to the rear end to make this a street toy? It has HD springs.
Thanks!

stsalvage · 04-09-2016, 05:44 PM

Boy this is a striped down modal the only 2 options i see are the AT and the 327 and side molding.reminds me of my 1967 Chevy camaro all it had was a 3 speed on the floor factory with the 327.Later i was told the car is more rare then the yenko's cus every one used them for crash up car's drag car's and beaters.

I do have some good new's for you i don't a lot of leg work on the 3/4 tons of that year if yours has leaf spring rear end you can do a swap with just front spindles to 1/2 ton for 300.00 and find a 1971-87 1/2 ton that has leaf spring and you have a 1/2 ton truck with disc brakes

Check with CCP.com they make front end parts they make spindles that will take your 3/4 ton ball joint and tie rod all you need to buy is backing plate caliber rotor porshtiing valve disc brake brake hoses and you have a good nice usable 1/2 ton truck

1968vetL-71 · 04-09-2016, 06:30 PM

I seen that on craigslist out there. Nice little rig!!!

**jocko** · 04-09-2016, 06:38 PM

Nice truck. Probably has a pretty deep rearend - since you mentioned it as a street toy, and the original trans is already long gone (TH350 never came in a 68), you could swap in an o/d trans as the most bang for the buck to get more 1st gear torque multi and much, much better highway rpm. Much more efficient than just a rear gear swap, kills two birds with one stone. That kinda cool don't come cheap though. Personally, I think that ol gal would prefer to be freshened up or restored and used as a truck!

BoneSaw · 04-09-2016, 07:15 PM

You know what transmission came in the 68?
I think this is an Eaton axle.
I don't expect it to be a drag truck, but I like it to burn some rubber and get off lights.
It a 2x4 so it's gonna live on the street. ( I have two 4x4s).
I just want to get as much HP out of a motor rebuild while keeping it pretty stock and build the transmission to handle it. And maybe a position rear end.

swamp rat · 04-09-2016, 07:27 PM

Realistically about 300HP would be my guess IF its built right, the rear end is a GM 12 bolt probably, could have 3.07 or 3.42 to 1 ratio, i think that ratio was dependent on if it was a standard or auto tranny stock. If it was mine I'd not hesitate to do a rebuild.

**jocko** · 04-09-2016, 07:36 PM

Stock trans, if automatic, would have been a TH400. Guessing(!) stock rear would likely have been more like an Eaton HO with 4.10 (but not sure with an automatic... don't have my gouge stash handy

)

Sicklajoie · 04-09-2016, 07:39 PM

That right there is my dream truck - a 68 C/20
Please leave it a 3/4 ton. Please, please, please.

BoneSaw · 04-09-2016, 07:40 PM

Sweet!!!

BoneSaw · 04-09-2016, 07:42 PM

Quote:

Originally Posted by Sicklajoie

That right there is my dream truck - a 68 C/20
Please leave it a 3/4 ton. Please, please, please.

It's gonna stay a C20! Don't worry.
They make a kit 8lug rotors and drop spindles with new heavy duty steering.

**jocko** · 04-09-2016, 07:43 PM

I thought you were already driving your dream truck!! It's sure my dream truck!

Sicklajoie · 04-09-2016, 07:48 PM

Quote:

Originally Posted by jocko

I thought you were already driving your dream truck!! It's sure my dream truck!

I like the 67-68 noses better.

Sicklajoie · 04-09-2016, 07:48 PM

Quote:

Originally Posted by BoneSaw

It's gonna stay a C20! Don't worry.
They make a kit 8lug rotors and drop spindles with new heavy duty steering.

Thank you.

**jocko** · 04-09-2016, 07:54 PM

Quote:

Originally Posted by Sicklajoie

I like the 67-68 noses better.

Ya, know, they are kinda growing on me too... I've wanted to track down this one for AGES (yes, this exact one! Last seen in Prescott Valley...): 68 K20 CST Custom Camper. But I digress, sorry to hijack (!), I was getting all excited... This is a 2x4 THREAD!!!!

Btw Paul, what are your two 4x4s?

Sicklajoie · 04-09-2016, 08:01 PM

Sorry, more thread hijack!
http://www.ebay.com/itm/Chevrolet-Ot...m=152044686212

**jocko** · 04-09-2016, 08:06 PM

oh I've been watching that there bad boy....

Little too rich for my blood. I prefer to buy them in rough shape, sink a fortune in them, then sell them later for less than the original purchase price.

BoneSaw · 04-09-2016, 08:09 PM

Quote:

Originally Posted by jocko

Ya, know, they are kinda growing on me too... I've wanted to track down this one for AGES (yes, this exact one! Last seen in Prescott Valley...): 68 K20 CST Custom Camper. But I digress, sorry to hijack (!), I was getting all excited... This is a 2x4 THREAD!!!!

Btw Paul, what are your two 4x4s?

71 CST Blazer
68 GMC K2500 w utility bed.

**jocko** · 04-09-2016, 10:23 PM

nice combo

dakattack7 · 04-10-2016, 03:06 AM

Quote:

Originally Posted by jocko

Ya, know, they are kinda growing on me too... I've wanted to track down this one for AGES (yes, this exact one! Last seen in Prescott Valley...): 68 K20 CST Custom Camper. But I digress, sorry to hijack (!), I was getting all excited... This is a 2x4 THREAD!!!!

Btw Paul, what are your two 4x4s?

I was trying to buy that truck too! The guy who was supposed to buy my old 70 that weekend flaked out. It was my birthday that weekend, I planned on selling the 70, heading up north for some camping and then bring that truck home! Small world.

**NGN** · 04-10-2016, 08:02 AM

Cool truck , my 67 327 4 barrel three speed truck had 220 hp stock , had it rebuilt I wanted a little more hp and be reliable so 300 hp was good for me. Not much motor work, it needed a bore so it got a 30 over with a very mild cam using same Rochester carb rebuilt also and using stock exhaust manifolds with a stock type dual exhaust. I think 327 could come up to 350-375 hp from the factory, also being reliable but with different heads and intake things like that. Can't wait till its all back in and driving around.
Nick

BoneSaw · 04-10-2016, 07:16 PM

Quote:

Originally Posted by NGN

Cool truck , my 67 327 4 barrel three speed truck had 220 hp stock , had it rebuilt I wanted a little more hp and be reliable so 300 hp was good for me. Not much motor work, it needed a bore so it got a 30 over with a very mild cam using same Rochester carb rebuilt also and using stock exhaust manifolds with a stock type dual exhaust. I think 327 could come up to 350-375 hp from the factory, also being reliable but with different heads and intake things like that. Can't wait till its all back in and driving around.
Nick

Good to know!
I'll probably follow a similar route. 300 should be fun. I want to keep the heads and manifold on it.

67 chevelle · 04-11-2016, 09:54 AM

Quote:

Originally Posted by jocko

Stock trans, if automatic, would have been a TH400. Guessing(!) stock rear would likely have been more like an Eaton HO with 4.10 (but not sure with an automatic... don't have my gouge stash handy

)

Was going to be my comment also , I thought all c20s had turbo 400s if they were autos , 327 is a great engine

Coley · 04-11-2016, 12:17 PM

Quote:

Originally Posted by BoneSaw

First 2x4.
It's all there but one piece of molding. If you can spot it and you got it, I want it haha.
Thanks!

....did you get your molding piece? (passenger side...back of cab, correct?)
If not, I think that is the only couple of pieces of 67/68' molding that I have off these trucks..lol.

All Good
Coley

Dave K. · 04-11-2016, 12:56 PM

Nice truck, funny--I need the same molding piece!

BoneSaw · 04-11-2016, 02:38 PM

[QUOTE=Coley;7556706]....did you get your molding piece? (passenger side...back of cab, correct?)
If not, I think that is the only couple of pieces of 67/68' molding that I have off these trucks..lol.

All Good
Coley[/QU
I haven't found an original yet, just a repop. If you've got a piece you'd be willing to part with, ID be willing to pay a fair price. It's literally the only thing I can find missing. Even the original buddy buckets the guy is gonna sell me, for extra haha

04-09-2016, 03:53 PM	#1
BoneSaw Registered User Join Date: Apr 2014 Location: golden, CO Posts: 55	#3 1968 c20 cst First 2x4. Stock 327 TH350 It's all there but one piece of molding. If you can spot it and you got it, I want it haha. With keeping the stock intake manifold on how much horsepower can I get outa this motor with a rebuild? What should be done to the rear end to make this a street toy? It has HD springs. Thanks! Attached Images __________________ Paul "Mike" Tzareff

04-09-2016, 05:44 PM	#2
stsalvage Scrapper 1 Join Date: Jan 2007 Location: Riverside Calif Posts: 1,649	Re: #3 1968 c20 cst Boy this is a striped down modal the only 2 options i see are the AT and the 327 and side molding.reminds me of my 1967 Chevy camaro all it had was a 3 speed on the floor factory with the 327.Later i was told the car is more rare then the yenko's cus every one used them for crash up car's drag car's and beaters. I do have some good new's for you i don't a lot of leg work on the 3/4 tons of that year if yours has leaf spring rear end you can do a swap with just front spindles to 1/2 ton for 300.00 and find a 1971-87 1/2 ton that has leaf spring and you have a 1/2 ton truck with disc brakes Check with CCP.com they make front end parts they make spindles that will take your 3/4 ton ball joint and tie rod all you need to buy is backing plate caliber rotor porshtiing valve disc brake brake hoses and you have a good nice usable 1/2 ton truck

04-09-2016, 06:38 PM	#4
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: #3 1968 c20 cst Nice truck. Probably has a pretty deep rearend - since you mentioned it as a street toy, and the original trans is already long gone (TH350 never came in a 68), you could swap in an o/d trans as the most bang for the buck to get more 1st gear torque multi and much, much better highway rpm. Much more efficient than just a rear gear swap, kills two birds with one stone. That kinda cool don't come cheap though. Personally, I think that ol gal would prefer to be freshened up or restored and used as a truck!

04-09-2016, 07:15 PM	#5
BoneSaw Registered User Join Date: Apr 2014 Location: golden, CO Posts: 55	Re: #3 1968 c20 cst You know what transmission came in the 68? I think this is an Eaton axle. I don't expect it to be a drag truck, but I like it to burn some rubber and get off lights. It a 2x4 so it's gonna live on the street. ( I have two 4x4s). I just want to get as much HP out of a motor rebuild while keeping it pretty stock and build the transmission to handle it. And maybe a position rear end. __________________ Paul "Mike" Tzareff

04-09-2016, 07:27 PM	#6
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: #3 1968 c20 cst Realistically about 300HP would be my guess IF its built right, the rear end is a GM 12 bolt probably, could have 3.07 or 3.42 to 1 ratio, i think that ratio was dependent on if it was a standard or auto tranny stock. If it was mine I'd not hesitate to do a rebuild. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

04-09-2016, 06:30 PM	#3
1968vetL-71 Junior Member Join Date: Jun 2004 Location: Murfreesboro, Tn Posts: 1,092	Re: #3 1968 c20 cst I seen that on craigslist out there. Nice little rig!!! __________________ 1969 impala conv 427 #s loaded. dad bought new 1969 "Judge" RA-3, rare warwick blue/white, #'s 1968 vet convertible #s 427/435 tripower (sold) 1968 belair 2door post #s 427/385 1936 ford 5w coupe dads 1st car 1969 camaro ss (17,xxx) miles Wanted: 69-72 suburban project, 69 camaro convertible. also any big block cars. 69-70 gto judge project.

04-09-2016, 07:36 PM	#7
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: #3 1968 c20 cst Stock trans, if automatic, would have been a TH400. Guessing(!) stock rear would likely have been more like an Eaton HO with 4.10 (but not sure with an automatic... don't have my gouge stash handy ) Last edited by jocko; 04-09-2016 at 07:41 PM.

04-09-2016, 07:39 PM	#8
Sicklajoie The Niner Join Date: Nov 2010 Location: Broad Brook, CT Posts: 2,499	Re: #3 1968 c20 cst That right there is my dream truck - a 68 C/20 Please leave it a 3/4 ton. Please, please, please. __________________ "A good racer is one whose head is in communication with his balls." - Richie Evans 1970 C/20 - 402/TH400/3.54s - 74K miles 2003 GMC Sierra 2500 - Wheatland Yellow Niner Progression Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=697183 Classic Trucks article: https://www.motortrend.com/features/...et-c20-driven/

04-09-2016, 07:40 PM	#9
BoneSaw Registered User Join Date: Apr 2014 Location: golden, CO Posts: 55	Re: #3 1968 c20 cst Sweet!!! __________________ Paul "Mike" Tzareff

04-09-2016, 07:43 PM	#11
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: #3 1968 c20 cst I thought you were already driving your dream truck!! It's sure my dream truck!

04-09-2016, 08:01 PM	#15
Sicklajoie The Niner Join Date: Nov 2010 Location: Broad Brook, CT Posts: 2,499	Re: #3 1968 c20 cst Sorry, more thread hijack! http://www.ebay.com/itm/Chevrolet-Ot...m=152044686212 Attached Images __________________ "A good racer is one whose head is in communication with his balls." - Richie Evans 1970 C/20 - 402/TH400/3.54s - 74K miles 2003 GMC Sierra 2500 - Wheatland Yellow Niner Progression Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=697183 Classic Trucks article: https://www.motortrend.com/features/...et-c20-driven/

04-09-2016, 08:06 PM	#16
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: #3 1968 c20 cst oh I've been watching that there bad boy.... Little too rich for my blood. I prefer to buy them in rough shape, sink a fortune in them, then sell them later for less than the original purchase price.

04-09-2016, 10:23 PM	#18
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,975	Re: #3 1968 c20 cst nice combo

04-10-2016, 08:02 AM	#20
NGN Registered User Join Date: Nov 2001 Location: Old Bridge,NJ Posts: 838	Re: #3 1968 c20 cst Cool truck , my 67 327 4 barrel three speed truck had 220 hp stock , had it rebuilt I wanted a little more hp and be reliable so 300 hp was good for me. Not much motor work, it needed a bore so it got a 30 over with a very mild cam using same Rochester carb rebuilt also and using stock exhaust manifolds with a stock type dual exhaust. I think 327 could come up to 350-375 hp from the factory, also being reliable but with different heads and intake things like that. Can't wait till its all back in and driving around. Nick

04-11-2016, 12:56 PM	#24
Dave K. Registered User Join Date: Jul 2009 Location: Milwaukee, WI Posts: 575	Re: #3 1968 c20 cst Nice truck, funny--I need the same molding piece!



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04-11-2016, 02:38 PM	#25
BoneSaw Registered User Join Date: Apr 2014 Location: golden, CO Posts: 55	Re: #3 1968 c20 cst [QUOTE=Coley;7556706]....did you get your molding piece? (passenger side...back of cab, correct?) If not, I think that is the only couple of pieces of 67/68' molding that I have off these trucks..lol. All Good Coley[/QU I haven't found an original yet, just a repop. If you've got a piece you'd be willing to part with, ID be willing to pay a fair price. It's literally the only thing I can find missing. Even the original buddy buckets the guy is gonna sell me, for extra haha __________________ Paul "Mike" Tzareff

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