Will the motor mounts on 454 Chevy be same as 350 chev?
No, the motor mounts on a 454 Chevy are not the same as those on a 350 Chevy. While both are small-block Chevy patterns, the 454 is a big-block, and its engine block is significantly larger and heavier. This necessitates different motor mounts to properly support the increased weight and dimensions. You'll need big-block specific motor mounts for a 454.