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-   -   69 Z PCV valve hose (https://www.yenko.net/forum/showthread.php?t=89214)

firstgenaddict 11-07-2006 06:53 PM

69 Z PCV valve hose
 
Does anyone know of a vendor for the correct PCV valve hose for a 69 Z... the ones that are commonly marketed as reproductions are not correct.
The reproduction hose looks like a piece of 3/8" cord re-enforced rubber fuel line... the orginals had a few ribs and what appears to be a little bit larger OD.
Here is a pic of the Camaro Specialties Barn Find car...
I have seen other unrestored cars with the ribbed hose as well...
https://www.yenko.net/photos/data/536/z31.jpg

YENKO DEUCE REGISTRY 11-07-2006 07:38 PM

Re: 69 Z PCV valve hose
 
Wow! Never knew that hose was a ribbey, did this change for '70? If not, it's just another item to change on deuce https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

firstgenaddict 11-07-2006 09:32 PM

Re: 69 Z PCV valve hose
 
I just recently noticed the difference... I was studying engine pics for correct finishes brackets etc and saw the hose...
Don't know about 70...

Ctown208 01-30-2022 05:15 AM

Anyone ever find a source for these ribbed hoses

parkbrau 01-30-2022 07:10 AM

http://www.docrebuild.com/dr-r-web/PCV2.pdf

X66 714 01-30-2022 11:38 AM

Quote:

Originally Posted by parkbrau (Post 1580539)

That's where I purchased mine. He also has better looking heater hoses....Joe

ALLZS 01-30-2022 12:42 PM

ya but is docrebuild back open

GaryC 08-10-2023 07:48 PM

Hello all. I'm resurrecting this post to ask what length is proper for the ribbed PCV molded end hose. I've been communicating with someone there at Dr. Rebuilds just today and he is unaware people are buying his hoses for the Camaro, and he can't honestly say which length he has that is proper since he's a Corvette parts supplier. I'm guessing 23" but I don't know for sure. What are y'all buying? Thanks.

I got this in e-mal today:

On my web store I list the year and horsepower of Corvettes as follows
23"
1966-1967 327 with 300 or 350 HP with A.I.R. smog
1966 427 with 425 or 450 HP
1966-1967 427 with 390 HP
1968 427 L88

17"
1966-1967 327 with 300 or 350 HP without A.I.R. smog
1968-1969 327 or 350 with 300 or 350 HP
1968-1970 427 with 390 HP
1969 427 with L88

X66 714 08-10-2023 08:41 PM

When I bought mine from Doc, he didn't ask me the lengths. I think he said they come one length & you had to cut to fit. The 302 was way longer than the 396 325hp.....Joe

The big block with a Q-jet would work with the 17"
The 302 will need to be the long one. It's 24" with the bend

mhm1966 08-10-2023 08:58 PM

I ordered the 23" hose so I could cut it to proper length. I haven't measured my original hose yet.

Lynn 08-10-2023 10:45 PM

Pretty sure the original is 11/32" id, as well as being a bit larger OD than a 3/8 fuel line.

GaryC 08-10-2023 11:40 PM

This is in reference to the ribbed PCV hose. DocRebuild

"Ours was & still is the most accurate replica down to the manufacturers identification pattern on the surface as well as the ID, OD, wall thickness & original material specification for exposure to high temperature organic gases. It's just another quality DocRebuild USA manufactured hose that matches all the OEM specifications with no tell tale noxious odor as found in uncured imported parts."

"1966-1970 Corvette 23" O.L. Formed PCV Hose with Ribs Repro Of GM 3871298 or 3868834 or 3901839"

I don't know what the part number for what the 302's hose is to make a comparison.

BCreekDave 08-11-2023 01:19 PM

My guess is it is the same hose as an L78, as the Holley carb has the same connection point and the PCV is in pretty close to the same location, so the 3871298 looks correct:
http://www.gmpartswiki.com/getpage?pageid=102361

GaryC 08-11-2023 05:10 PM

Went ahead and ordered the ribbed 23" PCV hose part #1745800 from DocRebuild today. I can provide pics if anyone needs to look at this item when it's delivered.

Thanks for everyone's help.

I'm guessing it was the owner who I was e-mailing back and forth on the site. He dots his I's and crosses his T's to say the least, very enthusiastic and a no nonsense kind of guy.

Pacecarjeff 08-11-2023 06:12 PM

I've wandered through Junkyards for 40 years, cars that were crashed back in the day and salvaged by the Police impound. I had collected a 1000 check valves along with portions of those hoses.

Many different vendors were used to produce those hoses for GM, and most were not originally ribbed, The Corvettes are different, because usually only one vendor supplied that one production line. Out of a sample of 100 PVC hoses , I would say only 3 were ribbed. I did not find Corvettes in these yards, and I remember all the ribbed hoses came off of Cadillacs. So in my opinion - Non ribbed PCV hoses are the ones most commonly used on the GM regular production cars and trucks.

GaryC 08-11-2023 08:35 PM

Quote:

Originally Posted by Pacecarjeff (Post 1629207)
I've wandered through Junkyards for 40 years, cars that were crashed back in the day and salvaged by the Police impound. I had collected a 1000 check valves along with portions of those hoses.

Many different vendors were used to produce those hoses for GM, and most were not originally ribbed, The Corvettes are different, because usually only one vendor supplied that one production line. Out of a sample of 100 PVC hoses , I would say only 3 were ribbed. I did not find Corvettes in these yards, and I remember all the ribbed hoses came off of Cadillacs. So in my opinion - Non ribbed PCV hoses are the ones most commonly used on the GM regular production cars and trucks.


Thanks for the info. I ordered your heater hoses a few nights ago, and only saw the smooth PCV hose on your web page when I was looking, which I already have. I bought mine from Ricks before it way became Eklers, around 1999 or 2000. Not sure if that one is correct or the ribbed one is. There is a lot of different/conflicting info from the many sites, Camaros.net, CRG, and this site, etc. that I have been reading. Still plenty to learn.

GaryC 08-17-2023 10:47 PM

3 Attachment(s)
I bought the PCV hose offered by Doc Rebuild and it came in today. This is their part number 1745800 and after laying it out next to the one I have installed it's appears to be the correct length. It seems I had to do a song and dance for this guy to actually buy it. After reading what I found on-line I'm surprised this guy is still in business. If you need any other views just let me know.


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