heads

[poppa]

How can I tell what kind of heads I have?? Which ones are the more desirable ones? Motor is 440 in a 69 Charger. Actually,I think the motor is a 70. Almost forgot , did they all come with two sets of springs per valve?

[mally69]

Pull the valve cover and post up the casting number and we will tell you what they are.

[poppa]

Looked real quick , only number I see ,besides 123 , is 2843906 -9 . I think it's -9.

[Charger-Bodie]

those are "906" heads and yes they are pretty good heads but they dont have hard seats or anything so you should run a lead substitute.