If my memory serves me correctly on the two I have installed, they both took special mods. These were stage V valve covers but they are probably the same. We used the stock k frame on both of these cars. One had Arruzza mounts. It was a 68 charger. All we had to do to it was put a 1/4” steel plate spacer between the rubber and the steel mount. It cleared. The e body had Schumacher mounts and the first one did not come close. He called Schumacher and they had a special mount to raise the right side. It still may have taken a spacer, I’m not sure. I’ve got a picture on my phone I’ll try and post. The 65 SS cars had a right side shock tower that was modified and recessed right at the point wher the shock bolts to the tower. The valve covers cleared, you just could not pull them off for the tech inspector at the track. I know you said you have a hemi k frame but my point is you will have to space the right side higher in order for it to fit. This picture is after the mod. I don’t have a picture of the valve cover but it was about the same.

The engine only has 150 street miles on it, zero track time or full throttle blasts and absolutely no beating on the car, and it has already had 6 different rear mail seals installed in it, 4 by me and 2 by Ray himself, 2 different real main seal retainers, and it just pours oil to the point it can't even be driven. Tons of blowby coming out of the breathers , 2 different sets of piston rings installed in it, same issues and this was all at my expense on a brand new engine. I told them I still have the same issues after pulling out the engine 3 different times and going back and forth all the way to their shop just to basically be told tough luck. If you would like to know more about it, I can PM you details. I don't want it to look like a post about me bashing someone or a company.

I'm not sure if something is machined wrong with the block or if it is still blowby that is causing the leak.

Yes, the motor was dynoed and they claimed that it didn't leak while it was running, however within the first minute of running after reinstalling the engine, there was a puddle of oil on the floor. I'm not sure if something is machined wrong with the block or if it is still blowby that is causing the leak. I unfortunately had to accept my loss in getting it fixed by them and eat the Bill. I'm just trying to keep moving forward and get it straightened out so that I can enjoy the car.. That's still my main issue to fix once I get the motor to sit correctly and the clearance issues solved.