Oil pump swap to K20z3

[Gilmour]

I have a K20a2 short block that needs an oil pump, and I’m not ready to drop the cash at a dealership for a new RSX oil pump. I have access to a free K20z3 oil pump, and I’m wonder if anyone has run this pump on a K20a2 ot a3 block?

I am aware that the Z3 pump is made for a deeper girdle like a K24 but will this cause issues on a K20a2 girdle?

Would I still use the K20a2 oil chain work?

Could I use my K20a2 Baffle and oil pan or would I need to use these from a K20z3?

[Gilmour]

Note the K20z3 oil pump only has 5,000kms on it. This is the only reason I’m considering using a used oil pump.

[talonXracer]

I have a K20a2 short block that needs an oil pump, and I’m not ready to drop the cash at a dealership for a new RSX oil pump. I have access to a free K20z3 oil pump, and I’m wonder if anyone has run this pump on a K20a2 ot a3 block?

I am aware that the Z3 pump is made for a deeper girdle like a K24 but will this cause issues on a K20a2 girdle?

Would I still use the K20a2 oil chain work?

Could I use my K20a2 Baffle and oil pan or would I need to use these from a K20z3?

Why was the oil pump removed with only 5K on it?

You will need the baffles plates, oil pan and the balancer oil jet to use that pump with an A2 block.