big valved #6 heads

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Nov 1, 2011 | 07:46 PM

import extermination

Thread Starter

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Joined: Apr 2009

Posts: 155

From: chilliwack,bc

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

Nov 2, 2011 | 05:23 AM

Indy_68_S

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Joined: Oct 2009

Posts: 1,226

From: Central IN

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

Nov 2, 2011 | 06:05 AM

import extermination

Thread Starter

Registered User

Joined: Apr 2009

Posts: 155

From: chilliwack,bc

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

Nov 2, 2011 | 06:30 AM

Indy_68_S

Registered User

Joined: Oct 2009

Posts: 1,226

From: Central IN

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

Nov 2, 2011 | 03:13 PM

joesw31

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Joined: May 2008

Posts: 1,488

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?