How do I know if my engine is original?

[THE73Z]

I tried a few searches but came up empty handed. A link would be great.

I bought my 240Z from the original owner who says the original engine was rebuilt, but the paper work from 1991 says,

Qty..Part number........Name of part..........................Price

1.....1010B-P7110RE....Reman Niss. Eng --> 7/79........1515.13

which leads me to believe he bought a remanufactured engine which would not be numbers matching.

Any thoughts would be great. Thanks, Z

[26th-Z]

Zach,

I am unclear if your car is an American import or not, but if it is HLS30, the original engine number is stamped on the VIN plate mounted to the right-hand shock tower in the engine bay. Directly adjacent to the VIN plate, a flat spot on the top of the engine block has the engine number stamped into it. Give a look and report back.

[THE73Z]

Thank you for the speedy reply.

Numbers matching!

Z