Anybody know what 'P30" means on a crankshaft??

what are the L24, L28, LD28 cranks desgnated with?

Brett

FWIW

I don't have a clue what these cast in numbers indicate. Found on the first counterweight, cast into the crank, I found these #'s on an L-28 P3040. This crank was out of an 80'ZX. I also have an LD28 crank, unknown year, and it is cast with a VO740.

Phred

These numbers are the second part of the Nissan part number. I have the LD28 crank which has V07 and I used this against the listed part no. in my Motorsports catalogue to make sure I got the right part. Though on my one, the ***40 part was different. Having V07 is how you make sure you have a LD28 crank. The crank part number on Carfiche.com for a ZX is P3000, it differs slightly from what Phred has, but he knows where his came from.

I think its the same as having a N42 head or a E36 intake manifold, these are the first 3 characters of the second part of a part number.

I hope that makes sense.

Ian

If the above info holds true then I'd say that the P30 is a 280ZX crank.