| FAQ |
| Members List |
| Social Groups |
| Calendar |
| Search |
| Today's Posts |
|
|
|
#1
04-19-2025, 06:18 PM
|
||||
|
||||
As others have said. This is just a variation in the casting pour. Like HIS said, grind the thin stuff away. Just like the flashing at the opening below the lifter bores. My 421 block had a similar imperfection. Cleaned up and it was not an issue.
|
| Reply |
| Thread Tools | |
| Display Modes | |
|
|
The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.
Hybrid Mode
