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Author Topic:   Canfield head question
MattN
Journeyman

Posts: 54
From: Mattoon, IL.
Registered: Feb 2002

posted 02-03-2003 11:24 PM     Click Here to See the Profile for MattN   Click Here to Email MattN     Edit/Delete Message   Reply w/Quote
Over the weekend, my dad picked up a pair of stage 3 canfields. The heads are cut for o-rings. I talked to a guy from the track a few weeks ago that used to run a set. He turned about 8k and had 13.25 compression. He had a set o-ringed and one split into 3 pcs. I think he runs alcohol and no power adders. He told me he found out too late that you are not supposed to o-ring them. I plan on calling Canfield soon. I was just wondering if anyone has any expereince with these heads. If o-ring grooves are bad, what would be wrong with tig welding them up and resurfacing? The engine these will be going on will have about the same compression, but not quite that many rpms. Thanks.

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Mpcoluv
Gearhead

Posts: 1144
From: Charlotte NC usa
Registered: Apr 2001

posted 02-04-2003 06:27 AM     Click Here to See the Profile for Mpcoluv   Click Here to Email Mpcoluv     Edit/Delete Message   Reply w/Quote
Are you sure that you can't just run the Loc Wire gaskets?
I'm no expert, but a good welder should be able to fix them at the worst.

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kid vishus
Gearhead

Posts: 5248
From: middle of NC
Registered: Oct 2000

posted 02-04-2003 08:03 AM     Click Here to See the Profile for kid vishus   Click Here to Email kid vishus     Edit/Delete Message   Reply w/Quote
I've never heard of such a thing. I would think the deck surface would have to be really thin for O ringing to be "not advised". And I cant imagine any new head being manufactured that way.

It will be interesting to see what canfeild says. My buddy has a set on a 408, and it runs really good (I don't know if they ore o ringed or not though).

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GT350Clone
Journeyman

Posts: 52
From: Kansas
Registered: Nov 2002

posted 02-04-2003 08:39 AM     Click Here to See the Profile for GT350Clone     Edit/Delete Message   Reply w/Quote
From Canfield's Website
Use Fel-Pro head gasket #1011-1 or #1011-2 or comparable gasket. Check to make sure the fire rings on gasket do not protrude into the combustion chamber. We do not recommend the use of o-ring style gaskets.(machining for o-rings will void your castings warranty)

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My webpage: www.gt350clone.com

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Moneymaker
Administrator

Posts: 21725
From: Lyons, IL, USA
Registered: May 99

posted 02-04-2003 12:58 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
I don't get it? Must be a quality of machining issue?
If the block is o ringed and centered, and the reciever grooves match, I can see a problem unless there is No2 involved and you have a KABOOM!

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Alex Denysenko
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