2010 Buick LaCrosse Engine
 

I found a 2010 Buick LaCrosse engine for sale online, and the price looks pretty decent—but maybe too decent. The seller says it runs strong, came out of a wrecked car, and has about 90k miles. No compression test results, just their word. I’ve heard mixed things about buying used engines for these cars—some say they’re solid, others mention electrical nightmares. Anyone here swapped in a used engine on a LaCrosse? Is it worth rolling the dice on a deal like this, or should I hold out for something with more paperwork and less risk?