need help with emisions garbage

[heavy71chevy]

Ive been working on my new used 64 327 and im putting my old hei off my old 350 as well as a edelbrock performer and holley 4 barell but when i took off the stock setup theres some time of canister under the intake in the top end and what Is this thing and how do I get rid of it? and also I have a truck with manual brakes and was wondering how to go about plumbing the vacuume system just to get it to run and what all needs to be hooked up...thanks in advance and sorry about the long post yall,
Hvy71

[WorkinLonghorn]

Is there some way to post a picture?

some time of canister under the intake in the top end and what Is this thing

Maybe it's clearer to someone else on here.

[GREASEMONKEY72]

a canister under the intake? as in the valley of the engine inside and under the intake?

[El Jay]

Originally Posted by heavy71chevy

Ive been working on my new used 64 327 and im putting my old hei off my old 350 as well as a edelbrock performer and holley 4 barell but when i took off the stock setup theres some time of canister under the intake in the top end and what Is this thing and how do I get rid of it? and also I have a truck with manual brakes and was wondering how to go about plumbing the vacuume system just to get it to run and what all needs to be hooked up...thanks in advance and sorry about the long post yall,
Hvy71

If it's kind of the back of the block facing forward, I've seen those things and I'm not real sure what they are.
But, it's my understanding, if you don't keep it, it can result in disastrous engine problems.

I'll ask some of my racing buddies when I get a chance.

[wzuke]

Before the days of the PCV valve, Chevy used a "road tube" to vent the engine crankcase. The "canister" worked as a baffle. If this is what you are referring to, there should be a metal tube (or a place for one) just behind the intake and would run toward the bottom of the engine. I thought they just used them on 265 and 283 ci.

[El Jay]

Originally Posted by El Jay

If it's kind of the back of the block facing forward, I've seen those things and I'm not real sure what they are.
But, it's my understanding, if you don't keep it, it can result in disastrous engine problems.

I'll ask some of my racing buddies when I get a chance.

I sent an e-mail out last night and got this back this A.M.
The guy that answered me used to do a lot of racing and he's probably forgotten more about putting engines together than most of us will ever know:

I said:
Back in the olden days of iron men and wooden ships, there used to be a canister looking thing under the intake manifolds.

What was it for?

If my memory serves, if it wasn't installed, the results could be disastrous.

Am I right, or am I wrong? Folks other than me need to know.


Date: Tue, 29 Apr 2008 11:15:11 -0700
From:
Subject: Re: Stupid question, regarding old small blocks
To:
Yes you are right it needs to be there. It is a crank case breather tube and it is there for the oil pressure. Give us a call

[heavy71chevy]

Ok so I reckon im gonna keep it...but what and how do I get it working cause the motor is now wearing an edelbrock performer manifold and holley carb..how do I hook it up? and I wish I could post a picture but I aint got a camera right now..thanks guys

[jayharrell]

I thought the canister was a charcoal canister, a purifier think. But could be wrong.

My 76 buick has one. Just more crap the gov thinks will change what comes out the tail pipe.

[El Jay]

Originally Posted by jayharrell

I thought the canister was a charcoal canister, a purifier think. But could be wrong.

My 76 buick has one. Just more crap the gov thinks will change what comes out the tail pipe.

He's talking about a canister under the intake manifold, in the valley. It's a bit bigger than a small tomato paste can, but smaller than a soup can.

I believe you're thinking about the vapor canister. It collects the vapors released from the fuel tank and the carburetor. Then when the engine is fired, it sucks the vapors into the engine and burns them; which actually gives you a bit of fuel that would have been lost to evaporation in the old days.

[heavy71chevy]

but how do I hook it up to my new induction system if I need it?

[john]

Does your block look like this? This hole was used for the road draft tube in small journal 327's

[El Jay]

Originally Posted by heavy71chevy

but how do I hook it up to my new induction system if I need it?

I'm not sure.
Won't your new manifold clear it?

If it won't, PM me and I'll get on the phone to my buddy and PM back with his answer.
Just be aware, he's a truck/heavy equipment mechanic so he works from like 10:00 A.M. to 6:00 P.M. PDT; so I won't call him until after 8:00 tonight.
It's a courtesy thing. He needs a little time to eat some dinner, drink a beer, and relax a bit before I call him.
So it'll be near, or after midnight, your time, before I'd PM back.

Hopefully, before then, somebody else will chime in with some help.

[john]

If you dont care about originallity you can remove those parts and seal the hole off and go with a pcv on one valve cover and a vent on the other like the later engines.

[Longhorn Man]

you can remove it, just need to run a PCV system on the valve covers... which is better for your engine anyways. And, if it matters to you, it is a bit better on the environment too. The PCV system is a win/win system.

[Longhorn Man]

john beat me to the punch by a couple seconds.

[heavy71chevy]

I had planned on going the pcv route I just wanted to make sure if I remove it it wasnt something I needed but I apreciate the help everyone