[1968GTO421]

Originally Posted by b-man

A set of ported 389 heads are going to set you back close to 2k by the time they’re upgraded to screw in studs and guide plates.

A near stock 455 would be cheaper and more street friendly than a 389 with head work and all the valve train components necessary to support a cam that allows the heads to shine.

A stock torque converter works nice with larger displacement engines, a 389 with a big cam will need a higher stall converter.

A big mild engine beats a high-strung smaller engine when it comes to all around street performance and driving pleasure.

Good luck with whatever engine you choose.

Excellent advice