Can anyone tell me the part number for a nitrated crank or tell me if this one is correct? CCBCB IIII 284571 also has JB stamped on it.
Thanks

 

Doesn`t look like a subaru part number, Have you tried here http://opposedforces.com/parts/

 

The letters/numbers you have quoted are the factory main bearing and big end size and casting numbers.
A nitrided crank has a very distinctive black colour to the webs and comes in 75mm stroke for the EJ20 and 79mm stroke for the EJ257.




Mick

 

Thanks for that. The one i have looks the same as the one pictured. Was told it was a nitrated one just wanted to make sure as i am selling my forged pistons, steel rods and crank shaft.
Thanks Chaps