Question on rebuilding a GY6 P case the dreaded 1P57QMJ By chinascoot (Read 509 times)

[chinascoot]

with the 2 bolt valve cover.  Its one of those Dong Fang 170cc had ports for an oil cooler and previous owner ran without it and eventually no oil.  So piston was seized.  I have a 61mm 157QMJ rebuild kit with the 4 bolt pattern valve cover.  And the thing friggin bolts up!  My question am I going to have problems with the crankshaft being too long?  It also has one of those all in one cam rocker arm deals and I'm not sure how to line that up for timing when doing the valve job.  Any help would be greatly appreciated.

Thanks