416 bore?

[hippy440]

what bore size is the 416 i dont mean mm i need to know the over bore size?:confused:

[Blackguywithouta400]

.80 over that is the 416 but i would only bore my quad if i have a piston in hand so they can bore it to the piston

When you buy a new piston it should come with paperwork for proper bore size, etc. make sure to give that paperwork to whoever does the bore..