sr20 240
01-09-2012, 05:16 PM
Hey guys i have 2 sr20 blocks and i am wondering if there is anyway to tell if they were red tops black tops .... If that even matters. The casting numbers are ... Sr20 139944w and the other one is sr20 246727w. Also wondering if they are de blocks that kids boosted or stock det .... Any help would be sweet
Thanks guys
Thanks guys