BBC casting numbers

« **Reply #25 on:** November 02, 2011, 01:39:41 PM »

So how can I tell if I have a Mark IV or Gen V? Do I have to pull the pan and see if the rear main seal is 1 or 2 piece or is there an easier way?

You previously stated it was a "959" " mid seventies" block, which means it would have been a MK IV block.

« **Reply #26 on:** November 02, 2011, 02:28:14 PM »

You previously stated it was a "959" " mid seventies" block, which means it would have been a MK IV block.

Thanx for the 411 Check your PM