The block 555705 is now 84011134
Small changes can make a big difference! This new version of the block has more material added to the mounting flange for the crankcase cover. It also has an added dowel locating pin at the 1:00 oclock position. Both of these add more stability to the block and base of the cylinder. The bolt at the 9:00 oclock position also has more material added plus a hole for the 206 seal application. The seal no longer goes through a hole in the bolt. The matching crank case cover also has more material in both of those areas (the 1:00 oclock and the 9:00 oclock positons). The block comes with a complete engine bolt package and new silicone embossed white paper gasket. These parts are not interchangeable with the previous version of the block.
OLD PART NUMBERS NEW PART NUMBERS
555705 BLOCK 84011134 BLOCK
789462 GASKET 84011135 GASKET
555706 COVER 84011136 CRANKCASE COVER
555680 SHIELD 555680 SHIELD
794822 SCREW 84011137 SCREW