[RocktimusPryme]

Im late the this party, but

Its the heads. End of story. Factory stock heads flow like my ported E heads. Let alone factory performance offerings which are still way cheaper than my heads and outflow them easily.

Love them or hate them, you cant argue with how good the factory units are. Even the cheap ones.


There is lot of icing on the cake too, as mentioned they are both newer and likely machines with improved processes, factory fuel injection is nice. Large aftermarket following, but at the end of the day from a cheap power perspective its all about those heads.

Not to mention that even with the "Sloppy Mechanics" tax that has made junkyard LS based motors go up, its NOTHING compared to the prices for a mystery 455 that might be junk when you open it up. And thats just Pontiac. Try to find a 427 or 428 FE for what it would cost for even a desirable 6.0 LS motor. The Sloppy tax is nothing compared to the White New Balance Tax.

I totally understand wanting to keep a Pontiac in a Pontiac, Ford in a Ford, whatever. I get it. "It doesnt look right", "The coil packs are ugly" I get it. Valid opinions. Where i get annoyed with these arguments is when somebody says "The LS motors arent that good"

Yeah they are. They are really, really good. There is no reason your love of another brand, model etc should cause one to throw reason out the window.