The Ford Barn

alexiskai · 12-30-2020, 11:33 AM

I'm working up the instructions for calculating piston-to-head clearance, and I was unable to find a record of the thickness of common head gaskets, either here or on fordgarage.com. I wrote to Best about the gasket I'm using and they wrote back, so I thought I would start a thread and maybe folks can add information if they have it.

Per Best Gasket, the compressed thickness of the 509G (GraphTite) gasket is .054" +/-.002.

Jack Shaft · 12-30-2020, 12:12 PM

I've found copper clad gaskets to run as high as .070 crushed.

Jim Brierley · 12-30-2020, 01:32 PM

It varies depending on the brand and material. One site I checked said 16.877cc's @ .050" and 20.253 @ .060, another 17.474, I use 20cc and figure that is close enough.

BRENT in 10-uh-C · 12-30-2020, 01:44 PM

Jim is correct.

alexiskai · 12-30-2020, 01:48 PM

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Quote:

Originally Posted by Jim Brierley

It varies depending on the brand and material. One site I checked said 16.877cc's @ .050" and 20.253 @ .060, another 17.474, I use 20cc and figure that is close enough.

Thanks, well if you have any specific info from a vendor on a specific brand and material, please add it here.

12-30-2020, 11:33 AM	#1
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 2,350	Compressed head gasket thickness, for the record I'm working up the instructions for calculating piston-to-head clearance, and I was unable to find a record of the thickness of common head gaskets, either here or on fordgarage.com. I wrote to Best about the gasket I'm using and they wrote back, so I thought I would start a thread and maybe folks can add information if they have it. Per Best Gasket, the compressed thickness of the 509G (GraphTite) gasket is .054" +/-.002.

12-30-2020, 12:12 PM	#2
Jack Shaft BANNED Join Date: Dec 2019 Posts: 1,196	Re: Compressed head gasket thickness, for the record I've found copper clad gaskets to run as high as .070 crushed.

12-30-2020, 01:32 PM	#3
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,085	Re: Compressed head gasket thickness, for the record It varies depending on the brand and material. One site I checked said 16.877cc's @ .050" and 20.253 @ .060, another 17.474, I use 20cc and figure that is close enough.

12-30-2020, 01:44 PM	#4
BRENT in 10-uh-C Senior Member Join Date: May 2010 Location: Eastern Tennessee Posts: 11,508	Re: Compressed head gasket thickness, for the record Jim is correct. __________________ . BRENT in 10-uh-C . www.model-a-ford.com ...(...Finally Updated!! ) .