Original engine?
 

Hello, I’m new to C3s. I’d like to ask if this engine is original to the car (71). Thanks.
https://cimg4.ibsrv.net/gimg/www.cor...cfd3a353c.jpeg

Compare the numbers on he engine block (passenger side below valve cover) and the VIN Number located on the “A” Pillar. Just Google C3 Corvette matching numbers and VIN, The numbers and letters of the VIN also give details about the car.

https://cimg9.ibsrv.net/gimg/www.cor...5460b132b.jpeg
A pillar VIN
https://cimg0.ibsrv.net/gimg/www.cor...09c545df3.jpeg
Engine number location

Your VIN and engine stamp pad agree and look to be original. However, both are for a 1973 car. And you think you have a '71 C3? Does it have a rubber front bumper or a chrome front bumper? If it is chrome, a prior owner has tried to make a '73 car into a "chrome bumper" car.

Lol. Two separate posts! The second one was an example of what the OP should be looking for.

Lots of code tools are located here. Be sure to look for the trim tag in the driver side doorframe.

http://corvettec3.ca/

Greg...
So why did the OP put "(71)" in his intitial post???? :toetap: But, thanks for your 'kind' reply.

The answer for the 71 OP (poster #1) is it looks like it could be original but does have some modification (like headers). As mentioned by poster #2 and his 73 pictures, the VIN and engine code match is the way to check further. Got my laugh for the day...thanks guys!

Replaced parts or missing that can be seen.

Master cylinder.
Water pump.
Upper Radiator Hose.
Radiator.
Radiator Cap
Ignition Wires and cap
Valve covers
Wiper door actuator boot
Unusual bracket on passenger hood latch
Lower ignition shielding and spark plug heat shields
Alternator
As stated exhaust manifolds

I (jetning) am the OP. I did say 71.
Eli responded and posted pictures of the windshield and block VIN. He never stated what year his car is.
Thanks.

It's coded in the sixth digit of the VIN shown (3)!