big valved #6 heads

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November 1st, 2011, 07:46 PM

import extermination

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Location: chilliwack,bc

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big valved #6 heads

Just picked up a set of big valved #6 heads
On olds faq i see it says they are int. 1.995 ext. 1.624
Where can i get a set of these?
Or are these numbers incorrect?
Thanks again guys

November 2nd, 2011, 05:23 AM

Indy_68_S

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Location: Central IN

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I'm not sure what you mean....
If you have 'big valved' #6's, what are you looking for ?

November 2nd, 2011, 06:05 AM

import extermination

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What is the actual size of the valve 1.995 or 2.000... Or does that 0.005 difference not matter?

November 2nd, 2011, 06:30 AM

Indy_68_S

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Quote:

Originally Posted by import extermination

What is the actual size of the valve 1.995 or 2.000... Or does that 0.005 difference not matter?

I think the 'official' W-31 sizes are 1.995"/1.624", but many go to the more common BBO sizes of 2.000"/1.625" (& some go even bigger!).... I am doing the 2.000/1.625 setup now...

More info here...
https://classicoldsmobile.com/forums...tml#post333941

November 2nd, 2011, 03:13 PM

joesw31

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Quote:

Originally Posted by import extermination

What is the actual size of the valve 1.995 or 2.000... Or does that 0.005 difference not matter?

The valves are not an exact size, but have a range that will be listed in the the GM repair book. Most parts have tolerances with a min. and max.

Are you looking for W-31 heads?