Yesterday at 10:09 PM #1 R rollie Active Member TurboBuick.Com Supporter! Joined Aug 7, 2010 Messages 127 New 4.1 Stage 2 Off Center 4 bolt main block 3.960 bore located near Detroit Mi 6k Attachments IMG_5555.jpeg 2 MB · Views: 9 IMG_5554.jpeg 2.6 MB · Views: 8 IMG_5556.jpeg 2.8 MB · Views: 9 IMG_3738.jpeg 3.2 MB · Views: 10 IMG_5542.jpeg 2.1 MB · Views: 10