old grumpy
Donation Time
I am building an 1600 engine from "quite good parts". I have two crankshafts. One is an EN9 that are inside the tolerances on big-ends and main bearings, the other is an EN19T (from an Rapier I think) but tolerances are on the limit or even 1-2 thousands of a millimetre outside. As I am not going to regrind anything for this engine. I think I go for the EN9. (I think it came from this engine in the first place). Opinions that this is unwise?