cylinder heads

[junkyardman]

I have 2 sets of cylinder heads and the numbers are C6AER, C4AE, can any one tell me any information about these heads????
And I am looking for 428 heads.

[s10streeter]

Try this link, I think those are 289 numbers 63-64.

http://raceabilene.com/kelly/hotrod/engine.html

[FFR428]

The C4AE heads are 64-65 352/390 heads with 71.2-74cc chambers. The C6AE-R are 66-67 352 heads with the same size chambers as the C4's. Both used stock 1.55/2.02 valves. By spec they are not 428 heads but indeed can be used. Both are a very good head with some CJ size valves and some port work. Thr C6-R's are often called the poor mans CJ heads. They are a common head and can be had reasonably priced. You could install some CJ sized valves, port and be close to a set of CJ heads. The CJ chambers are a little bigger and also a different shape. Unless you need a number correct set of 428 heads for a resto either set would be fine but most seem to favor the C6-R's. What are the specs on the 428?

G.

[FFR428]

Also when you say "and I am looking for 428 heads" do you mean for the one's you have to be 428??? Or to buy??? Or for casting numbers of the heads that were used on the 428's?????

Just wondering.....


G.

[junkyardman]

yes i would like to find a set of 428 heads.I think the casting number is C80E 6090 N.

[FFR428]

I know of a set in CA for sale for $600. Bare heads good shape and I can put you in touch with the seller if interested. G.

[junkyardman]

I live in florida I was looking for something a little closer. The shipping on that would cost a fortune. If you know of anything closer to Florida I would appriciate that. But yes I am interested in something closer to me.

[FFR428]

If I come across anything in fla i'll let ya know!

[Littleport22]

I have a 64 galaxie with a 390. I need to find out if it has dual valve springs or not. I know it sounds crazy, but I opened the valve covers and can't be positive. It looks like a plastic insert inside the valve spring and I can't tell if there is another spring beyond that.

Is there a way to find out by checking the engine stamp? Am I missing the obvious? Any help would be great. Thanks.

[techinspector1]

The insert you're seeing is probably a rubber umbrella valve stem seal. Normally you'd only have single springs and maybe a flat-wound damper spring which fits very closely to the inner diameter of the round single spring. Maybe you have dampers, maybe not. The damper is an interference fit with the single round wire outer spring and is meant to cancel harmonics in the spring. Actual "dual valve springs" will be 2 round wire springs and you'd be able to see both of them. Some dual springs also include the flat wound damper spring, some don't. I'm not for sure, but I don't think you can run dual springs with umbrellas, not enough room.
http://store.yahoo.com/cranecams/dualvalsprin5.html

[Littleport22]

The flat inner damper is what I see on my heads and called the "plastic insert". It is coiled along the inside of the main outer spring just like in the picture, but I still can't make out an inner spring. It looks like a cylinder inside the spring. Could the other spring be inside that cylinder?

If I see the plastic damper is that a sign that they are probably dual spring? or did all 390 heads have them? Thanks for the reply, I feel I'm getting close to solving the mystery.