Valve guide seals

SSGN · 03-07-2019, 09:37 PM

I have a set of heads that have been machined for 530 guide and looking for a recommendation on seal material. Seems to be more choices than ever.
Thanks in advance

richie 2 · 03-10-2019, 12:51 PM

viton rubber intake, white plastic pc style exh...both positive type.

Run to Rund · 03-10-2019, 01:06 PM

Howard's 93315 orange seals take up only .11-.12" guide to retainer clearance, fit over .532" guides.

SSGN · 03-10-2019, 04:24 PM

Quote:

Originally Posted by Run to Rund

Howard's 93315 orange seals take up only .11-.12" guide to retainer clearance, fit over .532" guides.

Some of the Howards have been discontinued and looks like they are going to a Viton seal similar to comp and manley.

lorenr · 03-10-2019, 10:50 PM

Who uses valve guides seals on exhaust valves and why?

FireSale · 03-12-2019, 10:57 AM

Cometic and Edelbrock seem to fit 11/32 valve stems best. I tried to put Comp 510 seals on a .500 head to sell and every one broke on 11/32 Ferra stems. My N heads have .530 seats and 11/32 Manley valves. The Cometic seals are metal shells and the Edelbrock are rubber with a steel band. All positive stop.

Mike Pearson · 03-12-2019, 02:27 PM

Quote:

Originally Posted by lorenr

Who uses valve guides seals on exhaust valves and why?

I usually don't run valve seals at all

03-07-2019, 09:37 PM	#1
SSGN Senior Member Join Date: Feb 2006 Posts: 645 Likes: 132 Liked 140 Times in 51 Posts	Valve guide seals I have a set of heads that have been machined for 530 guide and looking for a recommendation on seal material. Seems to be more choices than ever. Thanks in advance __________________ The more people I meet the more I like my dog Kevin

03-10-2019, 12:51 PM	#2
richie 2 Senior Member Join Date: Feb 2009 Posts: 971 Likes: 426 Liked 205 Times in 93 Posts	Re: Valve guide seals viton rubber intake, white plastic pc style exh...both positive type.

03-10-2019, 01:06 PM	#3
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 583 Likes: 8 Liked 54 Times in 27 Posts	Re: Valve guide seals Howard's 93315 orange seals take up only .11-.12" guide to retainer clearance, fit over .532" guides.

03-10-2019, 10:50 PM	#5
lorenr Junior Member Join Date: Jul 2014 Posts: 48 Likes: 259 Liked 19 Times in 9 Posts	Re: Valve guide seals Who uses valve guides seals on exhaust valves and why?

03-12-2019, 10:57 AM	#6
FireSale VIP Member Join Date: Feb 2014 Location: Lakewood Washington Posts: 1,407 Likes: 29 Liked 237 Times in 126 Posts	Re: Valve guide seals Cometic and Edelbrock seem to fit 11/32 valve stems best. I tried to put Comp 510 seals on a .500 head to sell and every one broke on 11/32 Ferra stems. My N heads have .530 seats and 11/32 Manley valves. The Cometic seals are metal shells and the Edelbrock are rubber with a steel band. All positive stop. __________________ Dale Shearon 68 Mustang 6394