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Ecklers AutoMotive
Username Post: 1963 327 PCV, behind carb and another hole in the block?        (Topic#354711)
EdCthePE 
Silver Supporting Member
Posts: 11
EdCthePE
Loc: CO
Reg: 11-25-18
01-03-19 09:02 PM - Post#2756520    

I am rebuilding a 1963 327 motor, chevy block #3782870. There are 2 holes in the back of the motor behind the carb. Going through older posts, I know one of the holes is for the PCV, which I found due to pictures on the older posts, which lands on the underside of carburetor? The PCV I found for the motor is closed with a bronze type material. Where does the other hole land? I have a Carter AFB, #9635 SA carburetor. Does anyone know where the PCV will land on the carb?

Attachment: IMG_20190103_202730.jpg (4.23 MB) 10 View(s)


327 chevy PCV and other hole?


1982 Jeep CJ5
1956 Studebaker Transtar


Edited by EdCthePE on 01-03-19 09:12 PM. Reason for edit: No reason given.

 
Ecklers AutoMotive
pvs409 
"7th Year" Gold Supporting Member
Posts: 2432
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
01-03-19 09:37 PM - Post#2756523    
    In response to EdCthePE

Your picture of the hole in the top of the block is for a factory oil pressure switch, our as I have on my 327 a brass “t” fitting for a oil pressure gauge and the factory oil pressure switch for the oil light.
The pcv on 62, 63 and 64’s “can be hooked” to the back of the carb. Most carbs have a plug for this connection on the lower back of the carb.

As I recall 62 to 64 Chevy’s 283 and 327 V-8’s had the pvc as a road draft tube from the factory (not connected to the carb).
62’s ( 283 & 327’s) for sure had a road draft tube from the factory
409’s switched from a road draft tube to a pvc to the back of the afb carbs in 1963
Paul

57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
Web http://paulstensland.com/
[image]http://chevytalk.org/sm/26453.jpg[/image]


 
EdCthePE 
Silver Supporting Member
Posts: 11
EdCthePE
Loc: CO
Reg: 11-25-18
01-04-19 04:59 AM - Post#2756537    
    In response to pvs409

Thanks for the response! Any idea the size and thread of the brass T fitting?
Do you recommend that I connect the PCV to the carb. Looks like this connection was not made in the previous installation.

1982 Jeep CJ5
1956 Studebaker Transtar


Edited by EdCthePE on 01-04-19 05:02 AM. Reason for edit: No reason given.

 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5530
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
01-04-19 08:42 AM - Post#2756548    
    In response to EdCthePE

Ed,
These photos will show you the PCV valve connection at the base of the AFB and the adaptor in the rear of the block.
Also notice the oil pressure switch in the other hole. It's a 1/8" pipe thread.

Verne


Attachment: __64_Flint_300hp_009.jpg (1.7 MB) 7 View(s)




Attachment: __64_Flint_300hp_014.jpg (1.76 MB) 6 View(s)






 
BigDogSS 
"10th Year" Silver Supporting Member
Posts: 4750
BigDogSS
Loc: SoCal
Reg: 12-21-01
01-04-19 08:50 AM - Post#2756549    
    In response to EdCthePE

  • EdCthePE Said:
....Do you recommend that I connect the PCV to the carb. Looks like this connection was not made in the previous installation.


Are you using the stock valve covers with no holes? Does your intake manifold have the oil-fill tube at the front? Wherever you are picking up the PCV, yes run it to the carburetor.


    1967 Chevrolet Impala SS convertible 327 - Ermine White C1 - VCCA Senior Award
    1967 Chevrolet Impala SS Sport Coupe 396 - Marina Blue FF - personal "barn-find" lol



Edited by BigDogSS on 01-04-19 08:51 AM. Reason for edit: No reason given.

 
pvs409 
"7th Year" Gold Supporting Member
Posts: 2432
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
01-04-19 09:40 AM - Post#2756555    
    In response to BigDogSS

As stated above you need a PCV for the rear of the engine.I see what looks like stock 327 valve covers (chrome) on your engine.
I sent you a e-mail on this subject.

Paul Stensland


57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
Web http://paulstensland.com/
[image]http://chevytalk.org/sm/26453.jpg[/image]


 
DonSSDD 
Silver Supporting Member
Posts: 7015
DonSSDD
Loc: Nova Scotia, Canada
Reg: 08-21-01
01-05-19 05:55 AM - Post#2756609    
    In response to pvs409

1962 was the last year for the road draft tube on all V8’s, I think you could get the pcv as an option in 62 and before that. Show Cars and others sell a conversion kit to add a pcv in place of the road draft tube, it’s the same as the 63 setup.

63 Pontiac Parisienne Sport Coupe(CDN Chev mechanically (409, 4 speed),62 Bel Air SC (sold), 59 El Camino (sold), 62 Bel Air SC(sold), 63 SWC Vette (sold),
Member #2194


 
EdCthePE 
Silver Supporting Member
Posts: 11
EdCthePE
Loc: CO
Reg: 11-25-18
01-05-19 08:38 AM - Post#2756618    
    In response to Verne_Frantz

Thanks for posting the pictures, it helps so much to see other installations. When I bought this there was an empty block, 2 heads and 3 boxes of parts. Since I didn't tear it apart I have questions about how to put it back together, I want to do it correctly, so thanks for your posts.
Ed

1982 Jeep CJ5
1956 Studebaker Transtar


 
pvs409 
"7th Year" Gold Supporting Member
Posts: 2432
pvs409
Loc: Sergeant Bluff, Iowa
Reg: 01-10-05
01-05-19 11:16 AM - Post#2756631    
    In response to EdCthePE

  • EdCthePE Said:
Thanks for posting the pictures, it helps so much to see other installations. When I bought this there was an empty block, 2 heads and 3 boxes of parts. Since I didn't tear it apart I have questions about how to put it back together, I want to do it correctly, so thanks for your posts.
Ed



Did you see the e-mail I sent to you?
Paul

57 BelairHT 283/270hp 4 spd
62 ImpHT 327/300 4 spd
62 Imp CV SS 327/300HP 700R4 (sold)
62 Imp HT SS 409/482 stroker 4 spd
62 Imp SS 409 - 5 spd Convertible
Web http://paulstensland.com/
[image]http://chevytalk.org/sm/26453.jpg[/image]


 
IgnitionMan 
Valued Contributor
Posts: 3554

Reg: 04-15-05
01-05-19 06:12 PM - Post#2756664    
    In response to pvs409

Actually, being the owner if both a '63 and '64, I can say both of them use a PC Valve screwed into the oil filler tube on the front of the intake manifold, with the filler tube sealed off from a sealing type cap.

The fitting at the back of the block is a hose holder, for the fresh air inlet for the system, with a section of rubber hose from it, to the air filter base, to let clean air into the valley and air areas inside the engine, part of the PCV system. Inside the valley at this hole, is an oil/air separator canister, to help manage separating o from the valley air and fresh air inlet. The canister is held on the air inlet hole on the block, and one bolt hole in the litter gallery area.

Air flow path is air filter element, to filter base hose fitting, to hose, to fitting in rear of block, into air area of engine, to oil filler tube, then through PC Valve, to hose to vacuum fitting at front of carb.

Many people have done it a whole bunch of different, screwball and backwards ways, none of which were the way GM did it best originally.



 
4spd409 
"13th Year" Silver Supporting Member
Posts: 599
4spd409
Loc: Sherwood ND
Reg: 10-10-02
01-05-19 06:17 PM - Post#2756666    
    In response to IgnitionMan

That system was not used on the Impala in 63-64.
All 283s and 327s had a pcv valve at the rear of the carb that was connected to the vent pipe at the rear of the block and a vented oil fill cap.The closed cap with hose connected to the pcv valve was used on some Corvettes and a similar system was used on the 409s. It also may have been used on California cars.








61 Impala Bubbletop


Edited by 4spd409 on 01-05-19 07:31 PM. Reason for edit: No reason given.

 
BigDogSS 
"10th Year" Silver Supporting Member
Posts: 4750
BigDogSS
Loc: SoCal
Reg: 12-21-01
01-05-19 11:04 PM - Post#2756678    
    In response to 4spd409

The system IgnitionMan described was what is known as a "closed PCV" system and was used in 1964 in California cars and optional for 49 state cars. See RPOs K23 and K24. And I agree with him --> GM designed a great system --> why change it?
FYI, the "closed PCV" system keeps the engine compartment cleaner than the "open PCV" system, as any oil vapers are contained in the air cleaner.

IgnitionMan, did you buy these cars when you lived in California?

Attachment: 1964_PCV.jpg (42.08 KB) 6 View(s)




    1967 Chevrolet Impala SS convertible 327 - Ermine White C1 - VCCA Senior Award
    1967 Chevrolet Impala SS Sport Coupe 396 - Marina Blue FF - personal "barn-find" lol



Edited by BigDogSS on 01-05-19 11:19 PM. Reason for edit: No reason given.

 
IgnitionMan 
Valued Contributor
Posts: 3554

Reg: 04-15-05
01-06-19 02:02 AM - Post#2756685    
    In response to BigDogSS

One is a California car, the other one came from Idaho. All the ones I have seen were like these two.



 
junky 
Valued Contributor
Posts: 2870

Loc: Northeast CT
Reg: 06-27-10
01-06-19 10:00 AM - Post#2756705    
    In response to IgnitionMan

Look at the data plate, or VIN to see which GM manufacturing plant that they were assembled. That should help to determine the question if it is factory or aftermarket. I'm betting on OEM parts.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
IgnitionMan 
Valued Contributor
Posts: 3554

Reg: 04-15-05
01-06-19 10:13 AM - Post#2756706    
    In response to junky

Why, that is the way both if them came, no alterations, no need to look anything up. They are both dead stock, and correct.



 
4spd409 
"13th Year" Silver Supporting Member
Posts: 599
4spd409
Loc: Sherwood ND
Reg: 10-10-02
01-06-19 10:40 AM - Post#2756708    
    In response to IgnitionMan

You will note that the closed system in the Chevy illustration does not have a pcv valve screwed into the oil fill tube but a metered orfice at back of the carb (pcv valve).

61 Impala Bubbletop


 
IgnitionMan 
Valued Contributor
Posts: 3554

Reg: 04-15-05
01-06-19 08:39 PM - Post#2756747    
    In response to 4spd409

I understand the same basic setup as the ones on my two engines was used on later Chevelles, with the PC Valve placed inline in rubber tubing between the carb and sealed oil filler tube, valve not screwed into fill tube.

I've never seen a factory PC Valve screwed into the power brake takeoff port on the rear of the carb, unless someone did it on their own.



 
Verne_Frantz 
61-64 Subject Matter Expert
Posts: 5530
Verne_Frantz
Loc: Hightstown,NJ USA
Reg: 08-22-00
01-07-19 07:23 AM - Post#2756770    
    In response to IgnitionMan

In '62 & '63, the vacuum source for both the PCV and power brakes was taken off the rear of the carb. For '64, there was a fitting added to the top intake manifold runner for the P/B.
If you look at the photo I posted at the top of this thread, that's an original '64 PVC set-up on a 300hp with no P/B.
Remember not to confuse the PVC system with the CCV system.

Verne



 
threeimpalas 
Senior Member
Posts: 1170

Loc: Central Iowa
Reg: 02-21-02
01-10-19 08:40 AM - Post#2757030    
    In response to IgnitionMan

  • IgnitionMan Said:
Why, that is the way both if them came, no alterations, no need to look anything up. They are both dead stock, and correct.



Why? That Idaho car may have been built in California and had the closed components since Day 1, or maybe it was built in Wisconsin and converted to the closed style system after it left the factory.

I can attest that my father's '63 Bel Air, sold new in Newhall, IA, does not use the closed style system.

Mike
'58-62s and 348/409s


 
IgnitionMan 
Valued Contributor
Posts: 3554

Reg: 04-15-05
01-10-19 05:50 PM - Post#2757064    
    In response to threeimpalas

Both of mine are dead-on factory stock, not dealer altered. One is a Kalifornia car, the other isn't.

Please remember, I worked at Chevrolet, directly for Zora Arkus-Duntov.




 
junky 
Valued Contributor
Posts: 2870

Loc: Northeast CT
Reg: 06-27-10
01-10-19 07:04 PM - Post#2757073    
    In response to IgnitionMan

Please post some pictures of your engines crankcase ventilation systems so we can fully appreciate your cars systems. thanks Junky

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
4spd409 
"13th Year" Silver Supporting Member
Posts: 599
4spd409
Loc: Sherwood ND
Reg: 10-10-02
01-10-19 07:37 PM - Post#2757079    
    In response to junky

The new 63 that sold at the Lambrecht sale in Nebraska did not have the closed system. Pictures of it are on the internet. I have seen hundreds of 62-64 sbc and have never seen one with a closed system other than some California cars that had been converted to meet local smog laws and those were an after market type not GM.

61 Impala Bubbletop


Edited by 4spd409 on 01-10-19 07:58 PM. Reason for edit: No reason given.

 
threeimpalas 
Senior Member
Posts: 1170

Loc: Central Iowa
Reg: 02-21-02
01-11-19 08:52 AM - Post#2757112    
    In response to IgnitionMan

  • IgnitionMan Said:
Please remember, I worked at Chevrolet, directly for Zora Arkus-Duntov.




So what? That doesn't really mean anything. As has already been shown, you were apparently previously unaware how the PCV system was routed on (very likely) a majority of these cars.

Mike
'58-62s and 348/409s


 
Andy4639 
Frequent Contributor
Posts: 1277

Age: 58
Loc: Liberty, SC
Reg: 08-06-16
01-11-19 03:52 PM - Post#2757137    
    In response to threeimpalas

Don't none take offense to this but man ya'll need to chill out! Why is it everyone think's they know more than the rest. We all are here to learn about these cars, not prove who knows more!
Heck I don't know much of anything on them but I like to read and learn about them but post like this makes it hard.
I've been around Chevy's all my life and one thing I have learned is nobody knows what every thing was done to these vehicles from factory are dealer's, nobody because back in the day if you had enough money are knew a guy you could order whatever you wanted.
I know this for a fact my dad worked for Chevy too!


1956 Bel Air - LT-1/4l60
1964 SS Impala -350 crate/powerglide
1967 Ramp truck - 350/ 4 speed
1971 C 10 - 6.0 LS / 4l80e 4:10 gears 30 years owner
94 Elderado
2000 S-10
2008 LTZ Tahoe
2011 Treverse


Edited by Andy4639 on 01-11-19 03:54 PM. Reason for edit: No reason given.

 
fuzz1957 
Contributor
Posts: 569

Loc: NE IA
Reg: 02-18-08
01-14-19 08:42 PM - Post#2757396    
    In response to Andy4639

I stayed at a Red Roof Inn last night.

Fuzz

MAGA





 
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