I am building a 78ETL115, Johnson. I found a good deal on a machined block. Its off a 1977 Evinrude 115. Will this block be the same as mine ? Will everything bolt up ? The seller said , as long as my motor has the small center main bearing, which it does , everything else would be EXACTLY the same. True/False. <br /><br /> Thanks in advance,<br /> KYhunter