GS500 head gasket bore inner diameter

[Mekanix]

I've noticed that gs500's have a 74mm bore steel head gasket. Looking at buying one of these and boring it the extra 4mm for my project instead of ordering from cometic or making my own.

I'd like to know what the bore diameter of the head gasket realy is.

And what the bore diameter of the base gasket is.

thanks

[droyce]

steel head gasket? Will that seal? Copper ya, but steel? Go Cometic, mine was $40+?

And make your own base gasket

[Mekanix]

steel head gasket? Will that seal? Copper ya, but steel? Go Cometic, mine was $40+?

And make your own base gasket

Mine would be $57 for a coper head gasket from cometic and $27 for the coper base gasket. They only ship ups!! So add another $100 when it gets to my door!

Oh and i hate ups!


The gs500 used steel gaskets for the base and head stock so I don't see why not.

It does use 4 coper washers for the oil channels around the studs but that's no biggie.

Base gaskets are $7 and i need 3. I have one on order just to see what size it is.
I would have used the GR650 base gasket but they are the same price as 3 gs500 gaskets.

Head gaskets are $27 and id need just one.

I could buy them locally and have it in a few days.

I was just looking for exact specs to know if it would work better than the way i was going.

If i do have to order from cometic, Ray will help me out with shipping.

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[Mekanix]

For inquiring minds.

The base gasket for a gs500 is 0.010" and has a bore of 82mm.

It is steel and looks like this:




Its half the thickness of the stock 400 and 450 base gasket.


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