I have a new( to me) 68 convertable 350 HO 4 speed. I am trying to see how original it is. The block # is WK 238470. That is too big?? the vin is 123342 or prod. # 23342 is that just 505 off on the line or has the motor been replaced with a newer one. also the body tag date made is 11D or Nov. last week but the prod. # is 2138. Was this care made in Nov. of 67???
