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02-11-2009, 07:44 PM
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enough retainer to seal clearance?
So I have measured out the clearance on my vortec heads using the type seals shown below and have come up with this.
The intake valves have 18/32's or .5625" travel before the retainer will hit the seal. The exhaust valves have 16/32's or .500" travel before the retainer will hit the seal. I have read somewhere that these seals cannot be ran on these heads without machining the guide boss. Is this true? And if I can use these type seals will I have sufficient enough clearance to run an XE262 cam which gives .462/.469 lift. Last edited by studlyrocker1234; 02-12-2009 at 10:54 AM. 
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02-11-2009, 08:01 PM
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you will be fine with that clearance.
sam-missle
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02-12-2009, 10:54 AM
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anyone know about the seals and if they will work?
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02-13-2009, 03:28 AM
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Those are just stock replacement seals, nothing special.
If you have a few bucks to spend, have them machined for PC type teflon seals. I think I only charge $40 to do that, so a shop in your area should be similar.
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