Valve Seals

[JD1964]

I have my GT40 heads disassembled. Everything looks really good. No burrs at the keepers or valve tips and guides are snug with minimal play. They don't even really need a valve grind. I'm planing on just hand lapping them. Gonna get some mild porting work done and have them milled .030 as well.

Which valve seals would you recommend? I had already gotten some Comp Cams ones that dont fit unless you machine the guides. I don't want to do that. I'd prefer to avoid the Felpro umbrella type seals too.

So, what brand and part# do you recommend for valve seals?

Thanks.....

 

[mikestang63]

John, I used and like these

http://www.summitracing.com/parts/FMS-M-6571-A50/

A lot of people use Alex's seals

http://www.alexsparts.com/11-32-x-520-565-valve-seals-viton-flex-body-type-gt40-p-sbc/

 

[84Ttop]

I agree with the above. The fms seals will work well.

 

[JD1964]

I almost ordered the Ford valve seals. Then, I saw that the TFS valve spring kit I wanted also includes valve seals of similar design. So, I'll just use those.

Thanks again for the responses

 

[7991LXnSHO]

Why avoid Fel-pro? They generally make the best parts store stuff available. As far as what I'd pick, no matter the brand, I'd make sure they are Vinton if they are rubber. That way they will not cook.

 

[JD1964]

I don't avoid the Felpro brand at all. But when it comes to valve seals, they offer the plastic umbrella type that ride up and down with the valve stem. I prefer seal types that lock down over the guide instead.

I'm using Felpro head and intake gaskets for this job.

For header gaskets, I use Percy's dead soft aluminum.

 

[7991LXnSHO]

Sounds reasonable to me. Good luck and fast driving!

 

[Rick 91GT]

The positive locking style Vinton seal like the TFS kit will hold up better and work best