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JohnJL's Avatar
 
Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,767
Perfectbore cylinders: No Gasket?

I am assembling a set of new Perfect Bore 3.2 cylinders with my 3.0 heads that have been machined flat at the perimeter and "dished" a bit and twin-plugged. THe shop that does this is well known for their custom machine work and they had both the cylinders and heads (and pistons) to mock everything up before assembly.

I noticed there are no grooves in the Perfectbore cylinders.



Is it acceptable to assemble them without any head gasket/sealing ring? All the engines I've done before used a sealing ring...

Not much info on the Perfect Bore website...


Thanks

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2007 911 Turbo - Not a toy
1985 911 Cab - Wife's toy
1982 911 3.2 Indiash Rot Track Supercharged track toy
1978 911 3.0 Lichtbau toy "Gretchen"
1971 911 Targa S backroad toy
Old 06-08-2008, 06:18 PM
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3 restos WIP = psycho
 
kenikh's Avatar
 
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
Yep, pretty standard stuff. My 2.3 w/ Nickies is the same way. You'll notice Porsche ditched the CE rings on the 964, as well.
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Old 06-08-2008, 06:44 PM
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JohnJL's Avatar
 
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Thanks Kenik.

__________________
2007 911 Turbo - Not a toy
1985 911 Cab - Wife's toy
1982 911 3.2 Indiash Rot Track Supercharged track toy
1978 911 3.0 Lichtbau toy "Gretchen"
1971 911 Targa S backroad toy
Old 06-08-2008, 06:54 PM
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