From CloudModding OoT Wiki
Actor 0x0113
ovl_En_Ik
Version VRom VRam Size
Debug 00E2AEF0 00E2FB80 {{{ram-start}}} {{{ram-end}}} 4C90
NTSC 1.0 00DE98A0 00DEDED0 {{{ram-start}}} {{{ram-end}}} 4630
PAL MQ 00DCB510 00DCFB60 {{{ram-start}}} {{{ram-end}}} 4650

ovl_En_Ik is the Iron Knuckle enemy, notable for being one of the most destructive foes in Ocarina of Time.

Debug Rom Notes

Health
0x00E2B067

Health value to lose armor at, if you don't want him to lose his armor, simply enter a number past the health value.
Write the same number on these two offsets:
0x00E2C98F
0x00E2C9A7

Walking speed(armor on), going over 41 gives some pretty weird results
0x00E2F5C0

Attacks speed, same here; don't go over 41
0x00E2C00A
0x00E2BD86
0x00E2BA6E