specs

I'm planning on rebuilding a 401 for my 31 Ford A coupe hot-rod project, and have a few questions. Most importantly, does anyone know a good resource for all the dimensions and clearances for reassembling these motors? I would like to "blueprint" this engine as much as possible while I assemble...

I'm rebuilting a 263 str 8 engine #57682065 for a 1950 Buick Super Eight 50 with Dynaflow VIN#5551918 I need a NOS (or used in very good condition) Cylinder Head: can someone tell me where I can find it? I need also engine specifications to identify : - Piston Ring Size - Connecting Rod...