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What would a 455 Pontiac engine bored 40 over called?

A 455 Pontiac engine bored .040" over would be referred to as a 462 cubic inch engine. Here's why:

* Starting Point: The 455 Pontiac engine has a bore of 4.150 inches.

* Bore Over: Boring .040" over means increasing the bore by 0.040 inches.

* New Bore: The new bore would be 4.150 + 0.040 = 4.190 inches.

* Cubic Inch Calculation: The cubic inch displacement is calculated using the formula: (π/4) * bore² * stroke * number of cylinders

* Displacement: With a stroke of 3.90 inches and 8 cylinders, the new displacement would be: (π/4) * 4.190² * 3.90 * 8 ≈ 462 cubic inches.

So, a 455 Pontiac engine bored .040" over would be a 462 cubic inch engine.

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