airfuelEddie wrote:Can anyone please inform me of ANY problems with the new 440source heads? I have been reading a lot of information about them. I am concerned with any potential problems like core shift, gasket placement in regards to oiling feed holes, coolant feeds, are there any heli coil inserts in them like the edelbrocks have? Any feedback appreciated, I cant afford a purchase that I'll have to sell or scrap. I have read both bad and good about them. I havent heard ANYTHING bad about the eds heads though. Where they are made is totally unimportant to me as long as they meet the engineering specs. Thanks for your feedback.