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General Category => General Discussion => Topic started by: Interceptor398 on May 15, 2021, 07:45:42 PM

Title: Invader - 4/6 copper head gaskets
Post by: Interceptor398 on May 15, 2021, 07:45:42 PM

Anyone tried these??  Seems like the John Deere head gaskets had a copper ring but I do not know about the entire gasket being copper.  Seems like you would need some kind of sealer to make it work?

https://www.ebay.com/itm/313422111824

Title: Re: Invader - 4/6 copper head gaskets
Post by: ArcticInvader on May 15, 2021, 08:35:35 PM

Hi , I can’t see why they won’t work . I used to use full copper head gaskets on my small block Chevy on my drag car and they never leaked I didn’t have any sealer , they were soft enough they compressed and sealed.
  Just my 2 cents . Thanks ArcticInvader

Title: Re: Invader - 4/6 copper head gaskets
Post by: mswyka on May 16, 2021, 11:49:51 AM

Looks like a clever idea and worth a try.

Title: Re: Invader - 4/6 copper head gaskets
Post by: gixxer6 on May 17, 2021, 10:31:11 AM

I saw these a while back and cringed.  Seems like a bad idea, but who knows maybe it'll work???  Me, I'll stick with my NOS 4/6 gaskets.  If it ain't broke, don't fix it! 

Title: Re: Invader - 4/6 copper head gaskets
Post by: mswyka on May 19, 2021, 04:40:11 PM

The 4/6 gaskets definately work well

Title: Re: Invader - 4/6 copper head gaskets
Post by: Interceptor398 on May 19, 2021, 05:20:25 PM

If I remember correctly the 4/6 style gaskets are Deere?

Title: Re: Invader - 4/6 copper head gaskets
Post by: gixxer6 on May 20, 2021, 10:44:45 AM

Quote from: Interceptor398 on May 19, 2021, 05:20:25 PM

If I remember correctly the 4/6 style gaskets are Deere?

No, but they are similar.  The deere gaskets were a 2 piece design with a copper fire ring that was not quite as wide as the 4/6, and the deere used a composite gasket for the coolant passages that was coated in a white colored rubbery material where the 4/6 gasket was make of solid rubber. 

I tried the deere gaskets, they seem to work better than the Invader gaskets.  Nothing works as well as the 4/6 gaskets.  Plus they are reusable! 

Title: Re: Invader - 4/6 copper head gaskets
Post by: Ameritude on May 20, 2021, 11:05:58 AM

Do you have a good source for them 4/6 gaskets?

Title: Re: Invader - 4/6 copper head gaskets
Post by: gixxer6 on May 20, 2021, 11:37:15 AM

Quote from: Ameritude on May 20, 2021, 11:05:58 AM

Do you have a good source for them 4/6 gaskets?

I have collected some over the years, I don't think I have any extra though.  I supplied NOS samples to Tory Rau, he is working on having them reproduced.  If you need some immediately, you can sometimes find NOS on eBay. 

Title: Re: Invader - 4/6 copper head gaskets
Post by: mswyka on May 20, 2021, 11:41:13 AM

All of the ones that we have found have been used.  They have worked well even the second, or third, time around.

Title: Re: Invader - 4/6 copper head gaskets
Post by: gixxer6 on May 20, 2021, 12:52:34 PM

I have torn apart several 4/6 motors and find the original rubber section to be unusable.  However I've been using some of my NOS gaskets over and over again for the last 10 years without issue.  A couple of them have had at least 6 or 7 cycles.