The difference is the upper radiator hose. The K20 option is designed for cylinder heads with the coolant housing on the front. The K24 option is for cylinder headers with the upper coolant housing on the side.
CSF Black Full Size K-Swap Radiator 92-00 Civic EG EK 94-01 Integra DC K20
Hybrid Racing K-Series Swap Fuel Rail (K-Swap & Universal)
Aluminum Radiator+FAN For 1992-1995 Honda Civic EG W/ K Swap K20 K-Swap 93 94
3Row Aluminum Radiator For 1992-1995 92 93 94 Honda Civic EG W/K-Swap K20 K-Swap
Hybrid Racing K20 K24 K-Swap Grounding Wires Ground Kit (K-Series Swap) EG DC EK
