while the info provided was accurate, and interesting, it tells a part of yer question. general motors uses these numbers to designate a series of engines. big blocks are l-88 (old 427's) ls-6 (454) lt-1 (performance 350). etc. there are several designations of engines. oh yeah---old 350's really don't like new 350's. unless you are racing the numbers don't mean much if you are staying close to stock. a buddy of mine bought a new vette and was bragging about how fast it goes. i ask him if he's ever raced it---he asks me if i'm crazy. i ask him if he's ever had it over a hundred---he asks me if i realize just how expensive the car is. i look at him and smile and tell him how fast my junk pickup goes--and tell him i know it for a fact, cause i drove it that fast. then i ask him if he would have been better off with a v-6 and saved his money. he ain't never gonna use the power, so why have it. the point? well, if you ain't racin' how about taking a good engine and rebuilding it to reliable? add a few improvements to the intake, exhaust, and ignition system to make a solid reliable street ride. throw away the original cam. it makes a great ashtray stand. the lt-1 is a good engine, and i have run a few, but not necessary in a normal ride. save yer bucks
