So the block I'm about to use...

It was rebuilt about a year ago and has been sitting since. We go to crank it over with a wrench, after lubing the cylinder walls, and it's tough as a mo fo.

It got a bit easier after about one rotation with some oiling...

Is this a sign that the unused engine needs new bearings? Or does it just mean that due to sitting so long the engine is just not lubricated?

Should I try to get some oil on the mains and wrist pins and try rotating it with a wrench? Or should I replace the main bearings?

Thanks.

 

pop off a main cap and a connecting rod caps, look at their condition. worst case just get some assembly lube back in there and work it in. you can also ensure all the torquing by inspecting them all, lubing, and retorquing...then you know they're still tight.