Originally Posted by taco

I was never talking about the lsx as powering a grocery getter, the thread starter was looking at putting one in a single digit RACE CAR. The cold hard fact is that if you are building a RACE ENGINE the lsx isn't currently the best platform.

I can get an aluminum block ford windsor as well as an aluminum block standard sbc.

I'm not talking about the block I'm talking about availability of huge racing heads. I know there are aftermarket blocks available for the lsx. The majority of the power producing potential in an engine comes from the heads available and they just aren't there YET for the lsx.

The bluethunder 4.3s will flow 450+ cfm and the little chiefs will flow 470+. I haven't seen anything for the lsx that comes close.

The lsx will get to be just as fast as anything else, but right now in a race application it gets bested by both ford and other chevy small blocks.