If these are SBP, they were never made by the factory (they are aftermarket). If they are BBP and there are no tires on them, look by the valve stem hole to see if there is a date code. Note: They could be aftermarket as well so there may not be any codes.
Jay, just letting you know that I will be passing on the block. When we spoke on the phone Sunday, I thought you weren't oing to make a move on it and the Aeroheads this week so I would have a chance to work out the logistics with my machinist. Now that the heads are sold, the 9.20 R3 block...
Updated list of what is left:
#6: 1 (Pending but might be available if I do not get a confirmation)
#10: 1
#11: 1
#13: 1
#15: 1
#19: 1
#21: 1
#26: 1
#27: 2
#32: 1
Thanks.
Since I can no longer update the quantities in the individual posts, here is what is left. Thanks.
#4: 1
#6: 2
#7: 1
#8: 2
#9: 1
#10: 2
#11: 2
#12: 1
#13: 2
#14: 1
#15: 2
#19: 2
#21: 2
#26: 2
#27: 3
#32: 3