i have got this 308 and can't seem to find anything about it in the listings i have. engine number is OT999343 it is a turbo pattern block
It won't be OT engine prefix, most likely QT prefix which comes from the HQ-HZ Holden series.
Have a look around the area above the water pump. There is a cast date there, well it shoild have anyway.
Cheers Damien"SL/ENUT" Smith, The SL/E Fanatic!
A lucky owner of 2 SL/E Commodores, a rare VB SL/E and a 2 tone VC SL/E. Just need a VH SL/E and have the set!