1967 Corvette 435hp 3904391 finished matching L71 heads

1 matching pair of finished 3904391 square port cylinder heads, which were used on 1967 corvettes with the 427 / 435hp engine option. Both of these heads have the identical casting number and casting date: 3904391 and G 9 6, July 9, 1966. There have been no alterations, modifications, or machine work done to the ports. Both heads have undergone a complete valve job including new springs, valves, lifters, rods, and retainers, and all required machine work has been done. Hardened Seats have been installed. These are a finished pair of matching heads, and they are ready to be assembled to an engine.

We do have other 3904391 finished heads, with various dates, depending on your needs.

This item is advertised locally. Please give us a call if you have any questions or concerns, or email. 1-800-718-3643 or kyimports@earthlink.net