[b-man]

I’d consider building a 350 for 2 reasons.

The first one being if I owned a 350 HO car.

The second would be when all the big-bore blocks have disappeared, and they haven’t yet.

Come to think of it I’d build a 350 instead of a 400 if all I could find was a 557 casting 400 block.

The beauty of owning a Pontiac is all the engines are physically the same size and weigh within pounds of each other no matter the displacement. The 455 is the best bang for the buck hands down, the 400 is an awesome performance engine as well with an edge on fuel economy.

To me it makes little sense not to maximize your cubic inches, within reason. Sometimes the 455 is a little too thirsty and the massive torque is hard to harness so the 421/428 or 400 makes sense depending on how you set up your car.

A 350 or 326 just isn’t in the cards for the majority of us, unless we’re restoring a 326 or 350 numbers matching car.