1966 Small Block heads with no number on them

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Feb 25, 2020 | 03:30 PM

66SportCoupe

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Joined: Nov 2019

Posts: 1,416

From: St. Michael, MN

1966 Small Block heads with no number on them

Hey I have to ask has anyone else seen a set of 1966 330 small block heads without the #3 cast into them? I have a set off my 1966 F85 Deluxe. It's the original 310hp 4bbl engine.

This is off another 1966 310hp 330.

Feb 25, 2020 | 09:28 PM

edzolz

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Joined: Nov 2009

Posts: 3,009

From: Red Oak, Texas

Is there a number cast above the center exhaust ports. Should be three numbers on one side of the bolt hole and three on the other.

Feb 26, 2020 | 02:02 AM

66SportCoupe

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Joined: Nov 2019

Posts: 1,416

From: St. Michael, MN

Quote:

Originally Posted by edzolz

Is there a number cast above the center exhaust ports. Should be three numbers on one side of the bolt hole and three on the other.

Look at the pic you will notice those are not there either. They are under the valve cover between 2 valve springs.

Feb 27, 2020 | 08:59 AM

olds 307 and 403

Out of Line, Everytime😉

Joined: Dec 2006

Posts: 10,106

From: Melville, Saskatchewan

A warranty replacement head? Any noticeable grind marks?

Feb 27, 2020 | 09:06 AM

66SportCoupe

Thread Starter

Registered User

Joined: Nov 2019

Posts: 1,416

From: St. Michael, MN

Quote:

Originally Posted by olds 307 and 403

A warranty replacement head? Any noticeable grind marks?

No grind marks at all. Sequence number matches the POP card.

Feb 27, 2020 | 10:46 AM

joe_padavano

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Joined: Mar 2007

Posts: 50,802

From: Northern VA

Quote:

Originally Posted by 66SportCoupe

No grind marks at all. Sequence number matches the POP card.

It's not hard to grind off the raised number and then quickly hit the cast iron with a sand blaster to mask the grind marks. I have a set of J heads that someone did that to.