LT1 valve guide seals?
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
LT1 valve guide seals?
Did the LT1's use any type of valve guide seals? I believe that the valve guides are made of cast iron. Can positive seals be used or do I need bronze liners? I've had these heads apart for so long I don't remember what they used. The guides bosses are cut for positive seals already. Thanks
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
I didn't think about this before but.... it is possible they could have been cut for a different size PC seal...
Factory guides measure like .552-.560 and most aftermarket are .500 but there are .562, .530 and .490 aftermarket as well.
Take a caliper and measure the guide to be sure of what you have and what seal you need to buy.
I buy my valve seals from here:
http://www.alexsparts.com/valve-seals-11-32/
Alex has every type of valve seal you could ever need and is a good guy to buy from.
Will
Factory guides measure like .552-.560 and most aftermarket are .500 but there are .562, .530 and .490 aftermarket as well.
Take a caliper and measure the guide to be sure of what you have and what seal you need to buy.
I buy my valve seals from here:
http://www.alexsparts.com/valve-seals-11-32/
Alex has every type of valve seal you could ever need and is a good guy to buy from.
Will
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
They are .530. I have teflon positive seals but I'm hearing some bad things about them compared to Viton. As cheap as they are on the site you listed I will probably just get Viton as I haven't heard anything negative about them. Thanks.
Safety Car
Joined: Apr 2005
Posts: 3,624
Likes: 431
From: Dale City VA
I would recomend you use the Viton seals on a street car. The teflon seals are not that good in some of the high vacuum situations street cars run at when part throttle.
The metal clad Viton seals are the best.... all oems have gone to that style and its all I use these days.
Will
The metal clad Viton seals are the best.... all oems have gone to that style and its all I use these days.
Will
