Big Block 400 stroker .060 what CID ???

My 470"
400 block/4.375" bore
Eagle crank 3.900
Manley 6.760 rods
Diamond pistons 10.2:1
Edelbrock 84cc heads
Comp street solid roller 242/[email protected] .570/.576
Comp pro mag rockers
Smith Bros. pushrods
Edelbrock Performer RPM
Holley 800 DP
Idles at 800 rpm w/13" vac. Chassis dyno showed 415 rwhp at 5500 and over 500 ft lbs from 3000 up.

That's my build....must have copied/pasted from another thread. Not sure why you posted it here...but it was calculated using the formulas in this post...actually it calculates to 469" I believe. It would calculate that way no matter what rod length you use. I just chose the RB length rod.