The 1947 - Present Chevrolet & GMC Truck Message Board Network - Vortec Head Valve Seals Help/Recomendation

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- - Vortec Head Valve Seals Help/Recomendation (https://67-72chevytrucks.com/vboard/showthread.php?t=737860)

andymiller

05-14-2017 06:47 PM

Vortec Head Valve Seals Help/Recomendation

Just picked up a set of heads on the cheap, $50 for the set.

Need to replace the valve seals, but the local auto parts stores dont have what i seem to need.

My valve guide boss is measuring .550-.560 (battery is dead)

The felpro listed for Vortec Equiped heads were way to big, inner diameter of .580, seems like they would have popped right off.

Any recommendations?

Thanks

Jrainman

05-14-2017 08:18 PM

Re: Vortec Head Valve Seals Help/Recomendation

Just a FYI Vortec Heads are very prone to crack , I would have them checked to see if they are any good before started spending money ...

Bigdav160

05-14-2017 09:36 PM

Re: Vortec Head Valve Seals Help/Recomendation

There were two valve stem sizes offered. HD truck engines had larger stems.

andymiller

05-15-2017 02:56 PM

Re: Vortec Head Valve Seals Help/Recomendation

Quote:

Originally Posted by Jrainman (Post 7942678)

Just a FYI Vortec Heads are very prone to crack , I would have them checked to see if they are any good before started spending money ...

How do they check these for cracks?

Tom	05-15-2017 06:55 PM

Re: Vortec Head Valve Seals Help/Recomendation

NDT testing, a machine shop can do it. $50 for the set tells me they are cracked, hopefully not.

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