hello i have a rb25 i bought it on ebay i bent 4 valves on it but supertech want to know what year this motor came off of i guess 1989 to 1994 was a batch and 95-2000 was anotheir batch ?
my motor is a rb25
block serial number 090792a
only stamping on side of block 3x265 beside nissan japan and random 1, 2 around the block
and a 75t? on the block too
if some one know please help me find out what year it was made?