will a 370 Ford engine and a 400 Ford engine use the same flywheel?

[alyankey]

want to put a 400 in a dump truck thats got a 370, and need to know if i can use the flywheel.

 

[SonnyCrockett]

I don't think so. The 400 is a 335-series small block and the 370 is a 385-series big block.