I would say anything smaller than about a .50. Hope that helps!
Yes you can. The bore is the same size.
it is probably a 30 cal luger, which is a bottle neck cartridge.
Small rifle
4.165"
A small block 400 engine can typically be bored up to about 4.155 inches, depending on the specific block and its condition. However, the maximum bore size may vary based on the manufacturer and any previous machine work. It's important to consult with a professional engine builder to ensure the block can handle the increased bore without compromising structural integrity. Always consider the potential for overheating and other performance issues when increasing bore size.
421 c.I.d.
The bore size of a 400 small-block Chevy (SBC) is originally 4.125 inches. When you go .030 over, it means that the bore size is increased by 0.030 inches, resulting in a new bore size of 4.155 inches. This increase is typically done to accommodate for wear or damage in the cylinders.
No the head gaskets are dependent on bore size
4.000" the engine bore size
No, the head gasket bore size refers to the diameter of the bore and should be larger than the cylinder bore. If the engine cylinder has been chamfered at the top of the block, to make it easier to start ring assembly, the the gasket bore size should be at least that diameter. As an example, on a chevy small block with a stock 4 inch bore, the next gasket size is typically 4.030". Engines that have been bored out up to 4.040" will use a gasket size of 4.060". If you use a gasket smaller than the bore size, the gasket will fail as it can create hot spots that will cause pre-ignition. If the gasket bore size is too large it will create a cavity area that prevent a clean burn in the combustion chamber thus creating dirty emissions.
Stock bore size 64mm Max 66.5mm
90mm stock bore size on my 2002 foreman 450cc