I bought these a while back because I was building an N42 engine with an 89 mm bore, and sometimes it is hard to find N42 blocks that will take that much oversize safely.  I got lucky on the first engine I disassembled and now have these as spares.  Additionally, I have some parts from the engine I disassembled.  I can take more pictures of anything - these ads cap pics at no more than 10.  Just let me know. 

Prices: N42 engines - block and heads are N42 on both - $500 each 

8 new ITM guides - make offer

aluminum cover plates for cyl head and fuel - $10 plus shipping

Misc parts from an N42 which was disassembled - if you see anything you want there... possibly even just pay shipping and they are yours.  I am posting them mainly because that stuff tends to get thrown away, and if you truly have need of just one useable stock valve, for example, or something you see there then it would be nice if I may be able to help you out.