Assuming you are referring to an engine oil, the 454 big block engine was produced by Chevrolet from 1970 until 1990. For this engine, it is recommended that you use a SAE 30 weight motor oil with API service classification SF, SG, SH, SJ or SL. If your 454 engine was built after 1987, then you should also use an oil with the ACEA A2/B2 rating.