My friend MO,You are exactly right. You can block off the heat passage from the heads to the intake by using the correct valley cover. You can get the valley cover from Hughes Engineering (Google them up) and very good intake gaskets off of them too with a bead of silicon built in around each port.
To take things a little farther, if you put an Edelbrock Air Gap intake on your car with a low-restriction air cleaner you will pick up a noticable amount of torque and HP. But your engine is going to be a little cold-blooded and will need a little warm up time that with the heat passages blocked off.Mancini's is also a great place to do business with. Both companies are all Mopar, all the time and will answer questions over the phone for you, unlike
Indy Cylinder Head which does not want to talk to their customers at all. They consider that annoying and will refuse to answer your questions. Hope this helps you in some way. Stephen "Chick" Andrachek
----- Original Message ----- From: "MO" <micher@xxxxxxxxxxxxxxx> To: "The 1962 to 1965 Mopar Mail List Clubhouse" <1962to1965mopars@xxxxxxxxxxxxxxxx>Sent: Thursday, June 16, 2011 2:21 AM Subject: 440 head questionThis is for a 1978 head.Intake side -1/2 way between the intake ports. where the heat crossover port is. What does the semi-circle pocket in the casting intended to do. And what can be done to hide it? I would be using valley cover with blocked off heat port. Thanks for any help......................MO --You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group.To post to this group, send email to 1962to1965mopars@xxxxxxxxxxxxxxxxxTo unsubscribe from this group, send email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxxx For more options, visit this group at http://groups.google.com/group/1962to1965mopars?hl=en.
-- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To post to this group, send email to 1962to1965mopars@xxxxxxxxxxxxxxxxx To unsubscribe from this group, send email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxxx For more options, visit this group at http://groups.google.com/group/1962to1965mopars?hl=en.