Not really there are a few things that come into play that it is impossible for the manufacturer to know what length you need. Also this may or may not be your problem ,but dont get frustrated a little reading and its pretty simple, you may have to buy a few tools to check though. If not take it by your local performance shop. There is a pushrod length checker you can buy on the cheap. It extends to what you need and then you measure (twice and a third time) and thats the length you need. Check on the comp cams web site they have a lot of useful info.