Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2480781
04/10/18 10:23 PM
04/10/18 10:23 PM
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Joined: Dec 2007
Posts: 12,588 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,588
Great Neck,LI,new york
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What makes go in this direction? Have you been having issues with head gaskets? I had o-rings,tigged them closed and milled the head.
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: "O" ringing Hemi Head and Block
[Re: hemi-itis]
#2480827
04/10/18 11:39 PM
04/10/18 11:39 PM
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Joined: Jan 2015
Posts: 493 Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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What makes go in this direction? Have you been having issues with head gaskets? I had o-rings,tigged them closed and milled the head. I did melt the head and the block last year when the gasket went out, but it was cause from the car finally starting to hook, G force started to pull my fuel shut off lever off causing it to lean out. My friend that tours the country tuning Blown Promods says it should be mandatory at the new level
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2480943
04/11/18 09:09 AM
04/11/18 09:09 AM
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Joined: Jan 2005
Posts: 4,243 Charlotte, North Carolina
sgcuda
master
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master
Joined: Jan 2005
Posts: 4,243
Charlotte, North Carolina
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On my 500, the Indy heads had O rings in them, but not the block. It adds extra crush to seal the cylinders. I used a Flatout Gasket rubberized copper gasket. Sealed motor well at 14:1, but did have to add some extra silicone around the water ports. Probably because my deck surface was too rough on the block. Anyway, I don't think it is necessary to O ring both surfaces. Cut groove about 60-70% deep of wire diameter.
[image][/image]
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2480945
04/11/18 09:37 AM
04/11/18 09:37 AM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
master
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master
Joined: Jan 2005
Posts: 2,540
Milwaukee WI
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I would say you are making the right choice by going with o ringed copper. My personal opinion is to cut a receiver grove in the head, and the o ring in the block/ sleeve. The receiver groove distorts the gasket to prevent any straight path for combustion gases to escape. At the level you are at, I wouldn’t do it any other way.
"use it 'till it breaks, replace as needed"
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2481001
04/11/18 11:32 AM
04/11/18 11:32 AM
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Joined: Jan 2012
Posts: 2,652 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,652
Stuttgart, Arkansas
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In the old days there was a standard o-ring size/location on top of the sleeve and then a matching receiver groove in the head. You are wise to try to follow a standard path. But nowadays it seems everybody wants to be different and it makes things a lot harder. I had a new billet Pro Mod Hemi in the other day that had the old, old way of oringing the heads. It drives you crazy. Try to find out the closet thing to "standard" and go with it.
2011 Drag Pak Challenger
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2481047
04/11/18 01:03 PM
04/11/18 01:03 PM
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Joined: Dec 2007
Posts: 12,588 Great Neck,LI,new york
hemi-itis
I Live Here
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I Live Here
Joined: Dec 2007
Posts: 12,588
Great Neck,LI,new york
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Funny how LEAN really is MEAN!!,,,,,,,,,,NOT!!!!
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: "O" ringing Hemi Head and Block
[Re: TRENDZ]
#2481150
04/11/18 04:07 PM
04/11/18 04:07 PM
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Joined: Dec 2011
Posts: 268 ca
brownout
enthusiast
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enthusiast
Joined: Dec 2011
Posts: 268
ca
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I would say you are making the right choice by going with o ringed copper. My personal opinion is to cut a receiver grove in the head, and the o ring in the block/ sleeve. The receiver groove distorts the gasket to prevent any straight path for combustion gases to escape. At the level you are at, I wouldn’t do it any other way. ^^ That is your answer. Good copper gasket. I had my Indy block done and receiver groove in the heads. .043 wire. I will see if I can get specs as to depth of the oring groove and receiver groove for you. Cody
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Re: "O" ringing Hemi Head and Block
[Re: brownout]
#2481226
04/11/18 07:42 PM
04/11/18 07:42 PM
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Joined: Jan 2015
Posts: 493 Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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I would say you are making the right choice by going with o ringed copper. My personal opinion is to cut a receiver grove in the head, and the o ring in the block/ sleeve. The receiver groove distorts the gasket to prevent any straight path for combustion gases to escape. At the level you are at, I wouldn’t do it any other way. ^^ That is your answer. Good copper gasket. I had my Indy block done and receiver groove in the heads. .043 wire. I will see if I can get specs as to depth of the oring groove and receiver groove for you. Cody Thanks, a outside diameter would be great too
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2481239
04/11/18 08:15 PM
04/11/18 08:15 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I always ran the wire in the heads and left the groove in the block as the receiver groove.
The reason is you can get the wire very close to the edge of the chamber (especially with some wedge heads) and the wire helps support the groove. If there is no wire in the groove and it gets a little hot in that area it can fold up quicker without the wire in it.
I always grooved the block, put some rings in the block that weren't butted up and then put some bluing on the heads. I'd then bolt the head down and it would leave an impression where the groove should be.
Then up in the manual mill, indicate everything in and center the tool holder that was made to be used in the mill and cut the grooves.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: "O" ringing Hemi Head and Block
[Re: 590 Challenger]
#2481654
04/12/18 02:41 PM
04/12/18 02:41 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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I found someone to explain it to me, He said to use .041 wire and cut groove .039 wide, let the wire come out .010 to .012 out of the head. The receiver groove in the block needs to be .051 wide and .020 deep. He says the O ring always goes in the head and not the block, reason being is the the sleeve is hard and won’t distort and neither will the head with the ring in it, if you do it the other way what happens is the receiver groove in the aluminum of the head is soft, when the gasket gets stuffed into the edges of the receiver groove takes all the pressure and start to distort causing problems that can’t happen if the groove is in the block That's correct. I didn't know you wanted wire diameter etc. That guy gave you the straight poop.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: "O" ringing Hemi Head and Block
[Re: FastmOp]
#2481730
04/12/18 05:08 PM
04/12/18 05:08 PM
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Joined: Jan 2015
Posts: 493 Parts unknown
590 Challenger
OP
mopar
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OP
mopar
Joined: Jan 2015
Posts: 493
Parts unknown
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It's going to fly at 45 PSI I like the way you think, lol. It will be a cooler charge to spinning the blower slower, How much boost are you hit your's with?
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