Not to steal this thread, but the heads are probably C5AE-6049, A, AF, or AG. Basically your garden variety 289 2V or 4V head. IMHO
They were traded to my uncle as 289 hipo heads. I got them from him because he is sick and can't do anything with them now. I'm tring to find out if they are what they are supposed to be. I guess anything would be better than the 86 e6 heads I have.
In helping to identify these heads assuming they are all together, they should have screw in studs for the rockers. They did not use guide plates as Ford use "close tolerance slots" so they didn't have to use hardened push rods. The only other thing unique to Hi-Po heads is the cup the spring sits in. If you see the cup they will be the real deal.
IF it is those heads there should be a slot where the push rod goes through instead of a hole right? Clint
All the early heads had the guide slots until April 1966 when the change was made to rail rockers. The cast in spring cups are the one unique feature to the 289 Hi-po head. The screw in studs are as well, but these can be added to any head.
