Would I be able to overclock a i5 2500k processor with a H61H2-M2 Motherboard If so how?

No, you cannot effectively overclock an i5 2500K processor using an H61H2-M2 motherboard, as that motherboard does not support overclocking features. The H61 chipset is designed primarily for non-overclockable CPUs, while the i5 2500K is unlocked for overclocking when paired with a compatible motherboard, typically one with a Z68, Z77, or newer chipset. To overclock the i5 2500K, you would need to upgrade to a motherboard that supports overclocking features.