Opinions on this early 1967 small block pad stamp?

[Robert B.]

Re: Opinions on this early 1967 small block pad stamp?

Here's a very early '67 pad:

[Patrick T.]

Re: Opinions on this early 1967 small block pad stamp?

I do not agree that the absence of broach marks means it's a re stamp, I have seen several original stamps with no broach marks. Remove the head and most have broach marks. An absence of broach marks just means that it has been exposed to rusting for 50 years plus! Please do not use that as a standard for a re stamped motor. That logic won't fly!

JR

Joe, it seems that Al Grenning agrees with you.

[Gene M.]

Re: Opinions on this early 1967 small block pad stamp?

Here's a very early '67 pad:

What is that cylinder head in the photo?

[Leif A.]

Re: Opinions on this early 1967 small block pad stamp?



Looks like one of these:

3917290

1968-69

307/327

1.72

1.5

3927185

1969-73

307/327/350

1.72

1.5

[Gene M.]

Re: Opinions on this early 1967 small block pad stamp?

Leif,
Nothing I'm familiar with. In 68 they started with machined mounting pads with taped holes. Definitely not a 67 head shown. S/b a 462 or remote possibility of a left over 461. But no machined mounting pads. Sans the faced double humps.

[Joe C.]

Re: Opinions on this early 1967 small block pad stamp?

Joe,

The pad surface original broach marks are gone, which makes the stamp non original.

Other than that, the upper part of the "9" looks too small.

J Ray and P Tighe,

It's a fact that a new and/or freshly sharpened broaching tool will leave almost invisible tool marks on a head/pad; your evidence and posts are critical of what I stated in post #6. In order to clear up any misunderstanding, let me put it another way:

The pad shows machine marks which do not resemble original broach marks. The marks on the pad shown appear to be at an angle not aligned with the longitudinal axis of the head, with a texture which is NTP.

[Leif A.]

Re: Opinions on this early 1967 small block pad stamp?

Leif,
Nothing I'm familiar with. In 68 they started with machined mounting pads with taped holes. Definitely not a 67 head shown. S/b a 462 or remote possibility of a left over 461. But no machined mounting pads. Sans the faced double humps.

Gene,
I agree that is definitely not a '67 head. I surmised you knew this when you asked your original question...just put the picture and the part numbers out there for others to contemplate.

[Joe R.]

Re: Opinions on this early 1967 small block pad stamp?

Hi Joe C:

My sense is that the photos the owner provided do not allow a definitive determination about broach marks. The photos are simply too low in resolution.

I agree that some of the marks that can be seen are not parallel to the crank axis, but those could be scuff marks from a previous rebuild. I have tried to get the owner to provide better photos, but so far no luck. Now that we know the casting date is after the engine assembly date, the owner does not see the point in further examination of the pad.

[Joe C.]

Re: Opinions on this early 1967 small block pad stamp?

Hi Joe C:

My sense is that the photos the owner provided do not allow a definitive determination about broach marks. The photos are simply too low in resolution.

I agree that some of the marks that can be seen are not parallel to the crank axis, but those could be scuff marks from a previous rebuild. I have tried to get the owner to provide better photos, but so far no luck. Now that we know the casting date is after the engine assembly date, the owner does not see the point in further examination of the pad.

The resolution is clear enough for me. All of the lines are skewed, along the entire photo, and enough to tell me that the original broach marks are no longer present.

Let's move on, now. The pad issue is long ago resolved. My post was intended to defend my honor against other posts that implied that I am an amateur.

[Robert B.]

Re: Opinions on this early 1967 small block pad stamp?

What is that cylinder head in the photo?

The point of this photo was the pad surface and stamping, not the heads. One of the nicest original pads I've seen over the years. This is not an NCRS car, although the block is clearly original to the car. It's likely the heads were replaced sometime before I bought it. After restoration 8 years ago, this car is our driver - we've driven it all over the US on 8 different road trips!