1970 LT-1 engine stamping

[Mark S.]

LT1 Engine Pad.jpg
I'm trying to determine if the motor in the LT-1 I'm looking to buy is correct / original.

The car seems mostly original with correct part #'s, castings, dates, etc. However, I struggle with the engine pad stamping (see pic attached). I don't have any direct experience with early LT-1's so I'm hoping some of you do.

There is NO documentation even though the owner replaced the gas tank.

I am unsure about the positions / locations of the stamps on the pad (the ones i have seen have the date closer to the end of the pad on the inboard side).

There seems to be a lack of broach marks.

The " 1 " in the date seems odd and inconsistent with other motors I have observed. (again, i have not seen many early LT-1's)

The depth of the VIN # seems very deep.

Have I answered my own question here or does someone have some words of wisdom to help me otherwise say that this is a real LT-1?

Thanks for any help on this.

Mark

[Keith W.]

Here’s a couple pics of my ‘70 LT-1 for comparison


image.jpgimage.jpg

[Mike M.]

I see good broach makes outboard of the machine assembly data. mike

[Donn M.]

Mine is a mid March car and has the date stamp starting closer to the bottom edge, leaving a 1-1/2" space in the middle like Kieth's.
My vin stamp is also deeper. Broach marks are faint at best. Always has passed judging.

Donn

[Steven B.]

I see good broach makes outboard of the machine assembly data. mike

Agree, marks seem clear to me.

[Joe L.]

LT1 Engine Pad.jpg
I'm trying to determine if the motor in the LT-1 I'm looking to buy is correct / original.

The car seems mostly original with correct part #'s, castings, dates, etc. However, I struggle with the engine pad stamping (see pic attached). I don't have any direct experience with early LT-1's so I'm hoping some of you do.

There is NO documentation even though the owner replaced the gas tank.

I am unsure about the positions / locations of the stamps on the pad (the ones i have seen have the date closer to the end of the pad on the inboard side).

There seems to be a lack of broach marks.

The " 1 " in the date seems odd and inconsistent with other motors I have observed. (again, i have not seen many early LT-1's)

The depth of the VIN # seems very deep.

Have I answered my own question here or does someone have some words of wisdom to help me otherwise say that this is a real LT-1?

Thanks for any help on this.

Mark

Mark-----

The VIN stamping font size looks too small to me.

[Patrick B.]

Mark— The vin stamping on Kieth’s engine is original. The vin characters have a 50% aspect ratio. The engine on the car you are looking at has characters with a wider 60% aspect ratio. They are not St. Louis factory characters.

[Mark S.]

Thanks guys! This was really helpful. The comments regarding the font and aspect ratio of the VIN (and i really looked closely at zoomed in pictures side by side) plus the positioning so close to the date make me believe that this is a re-stamp.

I really appreciate everyone's input.

[Jon H.]

Mark, I just shot you a pm.

[Stephen B.]

another CTU stamping example.

[Mark S.]

Thanks for another pic.