Quote:
Originally Posted by truckster
I'm not knocking the LS, but that's simply not true of the Vortec engines. They're easily good for over 200k.
|
x2.....
An engine is an air-pump... It's as simple as that. Similar sized engines of different families perform different because of deficiencies/effeciencies in the parts used. A smog era SBC 327 using period parts & a carb is never going to match up against an LS based 5.3 with it's better compression ratio, better flowing heads, better spark control, EFI, & OD transmission.
But, that theoretical SBC 327 w/some better flowing heads, ideal compression, & an aftermarket EFI set-up w/an OD trans is on a much closer comparison level. The LS might seal better but they still can leak & they do.... Lots of mechanical stuff does.
Both engine families are good. Heck, both are great.
It's easy enough to put updated parts into a SBC (or even a BBC). Saying you can't get 2XX,XXX miles out of a sbc but can from an LS is not exactly accurate especially if they're built similarly.
Don't hate one over the other. Love them all
