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Mr. M
2025-09-05 18:42:56
These are good quality metal clad Viton valve stem seals. The technique I use to install these is as follows:1. First remove the tension springs from each seal. The reason for this is that the springs will interfere with the installation tool.2. Lightly coat the inside of the seal with a drop of light machine oil, and a drop spread around the top of the valve guide. Avoid using grease as creates hydraulic pressure and will work against you.3. With no pressure applied, gently twist the seals to seat them to the guide. This ensures the seals are positioned correctly on the valve guide.4. Then, use a 1/2" deep well socket (3/8 drive) and tap them in with a small hammer. I emphasize "tap" them...do not attempt to pound the seals in place or you will damage the seal and possibly the guide.5. Once confirmed the seal is properly seated, reinstall the tension spring and move on to the next one.
Richard
2025-08-08 13:22:43
Once valve guides machined easily installed
Customer
2025-07-22 13:50:01
good
RICHARD WILLIAMS
2025-07-14 18:16:24
used to freshen up my motor
Johnathon
2025-06-27 17:18:45
Arrived on time what I needed
Chris P
2025-06-14 13:31:11
Good seals but be careful with the small springs when installing, had to buy a second set as i mashed a couple of springs on the first set.
Dean Colburn
2025-05-28 18:33:51
The O.D. for these valve seals are .530, the I.D. is .525 by rough measurement with a caliper. The factory O.D. for the guides on the head are .530. .005 larger than the .525 I.D. of this seal. These valve seals do not fit factory heads. The factory guides must be cut to accept these. I wish the advertisement stated this instead of saying they are for .530 "GUIDE SIZE".
Wayne B.
2025-05-04 09:30:48
Great part and even better price no regrets on my choice here
barbara
2025-04-08 16:55:20
we received our order but it didn't fit the year of the truck make and modal. We put the right information of the vehicle but didn't fit. Too small.
james
2025-02-25 14:56:10
As described! Perfect for my vortec head rebuild with machines guides to 0.530†and 11/32†valves
Customer
2025-01-27 16:39:15
Good
Jamie K.
2024-12-31 15:25:31
I got 2 different styles in my package but not and equal amount. Not sure why???
Aldawg
2024-12-13 13:24:01
Speed of delevery
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