was referring to a b18c crank sorry, and yes oil jets would be an existing part, that would lubricate the engine internals, but to my knowledge the jets on the b18c and b18b are the same, i just have never heard anyone say oil squirters before. the only difference is in the oil pumps each of them have. I did say the LS stroke was longer didnt I? sorry i typed so fast i see i am missing words now lol...