Lucky Penny
Petty Officer 3rd Class
- Joined
- May 3, 2003
- Messages
- 82
I have always been under the impression that the below waterline zinc's provided protection for my engine. I have been reading other articles and find that I should have pencil zinc on/in my engine. It is a 1977 Chevy 350 (5.7L) I/O where are these zinc's located?
