1972 LT-1 Intake Question

[Larry M.]

The letters 'LP' (approx. 1/4" tall) are stamped into the upper, exposed surface of the flat boss of the exhaust heat crossover on the driver's side of the Winters aluminum intake manifold on our car.

Does anyone know what they mean?

Thanks,
Larry

[Terry M.]

Re: 1972 LT-1 Intake Question

One of the times I toured the Flint Engine plant I was told the person who hot-fired the engines, setting timing and balance, stamped a unique mark in the intake manifold. The idea was that if there was a come-back related to those settings the individual responsible could be tracked down. I suspect that mark is what you are seeing.

[Larry M.]

Re: 1972 LT-1 Intake Question

Thanks for the info Terry. I wonder if it was the worker's initials?

[Steven B.]

Re: 1972 LT-1 Intake Question

Terry, do you know which years the stamping was done?

(Are you sending alot of crews out in this weather?)


Thanks!

Steve

[Terry M.]

Re: 1972 LT-1 Intake Question

Terry, do you know which years the stamping was done?

(Are you sending alot of crews out in this weather?)

Thanks!

Steve

Steve,

I do not know what years it (workers mark on intake) was done, but I see it often on small blocks in the 1970-1972 range -- which is where I judge most often. I have seen it on Mark IV motors in the same years occasionally as well. It is not always letters like Larry found, but sometimes a symbol of some kind. I was told each worker had a hammer with a die on one end that was his to keep in a locker when he wasn't working.

(Now that I am more or less retired, I dispatch contract crews that are making capital improvements to the underground distribution system. Google UTILX for more information. As such I am the only guy in the office that gets up and leaves when the big storm's hit. I try to do that stealthily because it doesn't endear me to my colleagues. I job share with another retired dispatcher and work a week on and a week off. Life is good.)

[Alan S.]

Re: 1972 LT-1 Intake Question

Hi Terry,
An interesting tidbit about the the die hammer and locker!
Thanks for posting it!
In the summer of 1964 I worked at the tin mill at Bethlehem Steel in Sparrows Point, Md. I wrapped huge coils of stock to be loaded on trucks or train cars, The inspector used a hammer like tool with her, (yes, Her), initials on it to wack the coil in a couple of places right before I sealed it up.
Regards,
Alan

[Terry M.]

Re: 1972 LT-1 Intake Question

Hi Terry,
An interesting tidbit about the the die hammer and locker!
Thanks for posting it!
In the summer of 1974 I worked at the tin mill at Bethlehem Steel in Sparrows Point, Md. I wrapped huge coils of stock to be loaded on trucks or train cars, The inspector used a hammer like tool with her, (yes, Her), initials on it to wack the coil in a couple of places right before I sealed it up.
Regards,
Alan

Equal opportunity in 1974.