So I'm building a 408 stroker ls. Short block is done, I just can't make up my mind on heads. I need to stay around 65cc chambers to keep the compression up. I was going to do the ls1 enforcer heads, but I heard the 408 needs more air. So then I was thinking ls3 enforcers, but 71cc is no good. I'm trying to stay under 2k for heads, but can't figure out what to do. Anyone have any advice?

 

Their flow numbers are pretty decent and have 210cc intake ports. Olds Edelbrock heads only had around 200cc intake ports until the latest version. The LS have big ports stock but I think they are pathetic truck engines as delivered, weak below 3500 rpm. What cam and rpm are you planning on?

 

I'm running the Texas speed chopacabra cam. Basically it's just for cruising, but I want it to run efficiently and be able to have fun with it at the track if i wanted to.