Installed the oil pan over the weekend. Several posts I've seen stated that I need to loosen the harmonic balancer, but I was able to do the swap without doing that.
It's a pity that Holley did not use an O ring around the oil pan. Would be a much better solution for sealing.
Also, I used the Holley oil pan with the hinged door baffles:
https://www.holley.com/products/acce...s/parts/302-22
What I found was the arm that holds the baffle box would not allow the oil pickup tube to be installed -- it was just too tight. What I ended up doing is notching the arm near the tube and I was able to get everything together.
Another note is that there are two sensors on the factory oil pan. One is an oil pressure sensor that mounts on the oil filter boss. The other is on the opposite side and I believe this is a oil level sensor.
The LT4 has two oil pressure sensors, so the second one is redundant. That said, I am going to run an oil cooler and have asked Improved Racing if their adapter will work with the Holley oil pan. It has a sensor port on it, as shown at:
http://www.improvedracing.com/oil-co...tat-p-737.html
For the oil level, I know how to check my own oil level, so I'm not going to worry about that. I hope this won't bite me in the future.
When I dropped the factory pan, I was surprised how much metal particles were in the oil. I would have thought GM would have cleaned out the engine far better than what it was.
