Originally Posted by
BigBake
Sure there is, you can make more power in a smaller package, with less weight, more efficency, and not require a power adder to compensate for the lack of engineering. Plus it is obviuos you do not know much about LSX's, it is a six bolt main, that also uses much improved main caps with balanced loading across the crankshaft. Better and more durability than an SBC or pre mod motor.
but none are as small, offer as much power and efficiency for the size, and the weight reduction. If I can save 80-120lbs of weight from the front of the car, it is going to be an aluminum block.
Completely false, as mentioned in this thread W2W block or even the all new LS7 engine, or even the C5R block for that matter will run toe to toe if you got the money.
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.