could any1 tell me what i should look for when buying a second hand block. obviously that the bores are fine and no cracks in block. what else should i inspect it for? its a bare block by the way for a c20xe. also is there any difference between a c20xe block and a 20xe block? thanks for any help
Take a straight with you, and some feeler guages to check that the top of the block doesn't need skimming.
There are no differences between the C20XE and 20XE blocks. There are some detailed photos of a 20XE block in this forum, just search for "block photos" that will give you some guide as to what one should look like..