Engine decode

[Jesper]

Hi everyone,

can anybody help me decode my engine:

Cast number 3914678
Date code C58
Serial number 185414180 V 0307HP

On both heads: 549 and a "6"

The engine is probably a 302, 327 or 350. I´ve been told, that the engine should be a 327 from a 68´Corvette with 275 HP. Can anyone confirm this, and in case yes, how can this be documentated?

Thanks in advance, and with best regards

Jesper
Denmark 

[JohnZ]

NCRS references say 3914678 is the correct casting number for a 1968 Corvette 327, and the C 5 8 casting date says it was cast at the Saginaw Foundry on March 5, 1968; the partial VIN, 18S414180, says it was originally installed in a 1968 Corvette built on March 20th, and the 300hp engine was assembled at Flint V-8 on March 7th.

The original cylinder heads were 3917291, and their casting date will appear directly below the casting number, as shown in the photo below.

[Jesper]

Thanks for a fast and very detailed answer!!!

I must say, that i´m impressed !!!

Once again: Thamks a lot
Best regards

/Jesper