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Old 10-20-2008   #11
A26B
 
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Default Re: Plenum gasket glueing

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Originally Posted by UKZR1 View Post
The plenum is ported for a 368 so the gasket needs to be trimmed quite a bit and I cant afford for it to move around at all.
Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.

About the 1/4" phenolic spacers; I ran them on my car for awhile and doubt there is any appreciable gain. Makes the alum vac tube on the driver side fit poorly and also means you now need 2 sets of plenum gaskets. Worth the money? I don't think so.
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Old 10-20-2008   #12
Chris_32212
 
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Default Re: Plenum gasket glueing

Quote:
Originally Posted by A26B View Post
Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.

About the 1/4" phenolic spacers; I ran them on my car for awhile and doubt there is any appreciable gain. Makes the alum vac tube on the driver side fit poorly and also means you now need 2 sets of plenum gaskets. Worth the money? I don't think so.

thansk for the info on the phenolic spacers. didn't realize that i would also need a second set of gaskets. gasket thickness of .42 if preffered? why would that be preferred? terribly curious. thanks again

Chris
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Old 10-20-2008   #13
A26B
 
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Default Re: Plenum gasket glueing

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.....thickness of .42 if preffered? why would that be preferred? terribly curious. thanks again
Chris
From my perspective, the 1/32" (0.031") thickness is just fine. User preference on the 0.042" thicker gasket. I just make them available.
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JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
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Old 10-21-2008   #14
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Default Re: Plenum gasket glueing

i guess my question is, why would someone prefer the thicker gasket?

Chris
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Old 10-21-2008   #15
LoTu5
 
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Default Re: Plenum gasket glueing

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Originally Posted by Chris_32212 View Post
i guess my question is, why would someone prefer the thicker gasket?

Chris
Sometimes when there has been extensive inlet work to the plenum the heat distorts the mating surfaces with the IH's and the thicker gaskets help with a better seal.

A26B, good to know you have these available.
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Old 10-21-2008   #16
Chris_32212
 
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Default Re: Plenum gasket glueing

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Originally Posted by LoTu5 View Post
Sometimes when there has been extensive inlet work to the plenum the heat distorts the mating surfaces with the IH's and the thicker gaskets help with a better seal.

A26B, good to know you have these available.

thanks for the info bud!!!

Chris
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Old 10-21-2008   #17
UKZR1
 
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Default Re: Plenum gasket glueing

Quote:
Originally Posted by A26B View Post
Just an FYI here..... The plenum gaskets I make have 37.5mm port dia., so no need to cut gaskets to fit ported engines. They still retain a narrow port divider and can be used on stock port size as well. They are available in the 0.030" thickness, same as OEM, and ).042" thickness if preferred.
Thats useful. YHM!
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Old 10-21-2008   #18
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Default Re: Plenum gasket glueing

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Originally Posted by Chris_32212 View Post
i guess my question is, why would someone prefer the thicker gasket?

Chris
Like other things in life some guys just like it with more in the middle.
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Old 10-22-2008   #19
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Default Re: Plenum gasket glueing

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Like other things in life some guys just like it with more in the middle.
i guess size really does matter.

Chris
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Old 10-22-2008   #20
A26B
 
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Default Re: Plenum gasket glueing

Only if there are other areas of deficiency!
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JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994 ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.
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