Cieaning up Edelbrock Aluminum heads?

Phreakish said
Pretty sure those are made in a permanent mold (hardened steel tooling). Edelbrock does permanent molds too, but not all parts are. From what I understand, many of the new parts are. Permanent molds run much quicker cycles and so are great for high volume parts.
Sand casting has a lot of drawbacks, but the tooling is so much cheaper (50-100x) than permanent molds that it persists for lower volume stuff. Easier to incorporate changes too if a company offers variations within a part family.
Woud love to see Edelbrock convert over though, would cut way down on cosmetic issues.

From my dealing with them on the Victor340 issues not once but twice they seem to have an open ear. I just don’t have the time to take on every battle as it takes dedication to make calls, email's, pictures, phone calls, and then following up. It’s not a one and done issue. I probably had five hours tied up on two Victor340 issues but they handled them both great. Milidon I tried real hard too as I’ve probably bought 5 small block pans over the years. Tom insisted that they didn’t change their pans even though I sent probably 15 pictures of both pans, old and new. A year later he sent me a free oil pan and it was as messed up as the one I started our conversation on. I’m done with them. I probably have 3-5 hours talking to TrickFlow starting before they even made a Mopar product. I will probably never buy another small block Mopar TrickFlow head after seeing the small azz valve seat they installed in their heads. A phone call and talk with two employees lead to zero answers. If you young guys don’t step up your game you will keep getting crap. Us old timers fought our battles and are dying off. Your up.