Why do cammed ls motors sound and go better?

[AUwindsor]

Originally Posted by GTP-RPD

At the time another big $$ 6L was on Bruce Heinrichs dyno as well, built bottom end, rectangle port L98 heads stuffed full of huge valves & ported heavily, 12.5:1, solid roller cam, FAST intake, dry sump etc etc.

Made 352rwkw & a LOT less through the midrange.....

It is always match the parts, bigger is often not better, everything must work together - airspeed through the heads is critical, big ports suck, the right sized ports win.

spot on. often people who don't understand an engine fall for the hype of the bigger port flow number, the better. this isn't always correct, often otherwise

you can flow a 4" sewer pipe on a bench, it'll flow 1000cfm.. doesn't mean it will make more power, or better yet ET faster in the car.