It's not diffucult to widen a frame...which may be what you want to end up doing so you can fit some wider wheels and center the drivetrain.
Here's how I like to keep my torquey engines from sliding around when I use slotted engine-mounting plates...the bolts make it easier to set the chain or belt tension, too...they hold the engine where you want it while retightening the mounting bolts.
Here's how I like to keep my torquey engines from sliding around when I use slotted engine-mounting plates...the bolts make it easier to set the chain or belt tension, too...they hold the engine where you want it while retightening the mounting bolts.