Can a Cadillac 4.6 northstar fit in sunfire keeping fwd?
No, a Cadillac 4.6L Northstar V8 will absolutely not fit in a Pontiac Sunfire while maintaining front-wheel drive (FWD). The Sunfire was designed for much smaller, inline four-cylinder engines. The Northstar is significantly larger and wider, and its placement would interfere extensively with the firewall, suspension, and overall chassis design of the Sunfire. Even if you could somehow physically cram it in, adapting the drivetrain and making it functional would be a nearly impossible undertaking.