Re: Oil pan to header clearance
Milodon offers some real good pans which offer a good amount of clearences just about everywhere. I think you should take a look on their website, and shop for a better pan. Because it's either that, or you have some very poor fitting headers there. On my 632 motor, I have 2 1/8" diameter primary tubes and 3.5" diameter collectors on my headers, and they aren't even custom pieces, and with the 8 quart pan I had and the present 6 quart pan I have on the motor, I never had an issue with the header tubes being close to the pans. And both of them are kicked out. seems to me that you can find a more suitable oil pan.
70 Chevelle SS clone (632 CI powered).