engine block I.D
Can anyone help on this one?
I bought an engine block on here a while back on the understanding it was an XR2, just been getting around to rebuild it as a spare but the serial number stamped on it is OG110720, when I type this into the merc website it comes up as a seapro/marathon block 3 litre 225hp with a 3.377in bore.
this block only has a 3.155in bore(+.030 oversize) I'm not familiar with the seapro blocks, but this definitely looks like an XR2 block i.e. unpainted with the splodge of green on the top. I just wanna make sure the crank and pistons I have are compatible. Totally confused!