Howdy Back Curtis and All:
What are the casting numbers on the '64 head? The reason I ask is that these early heads have several inherant shortcomings that cannot be solved by adding larger, modified valves and porting. The C1s and C3s, the most likely casting # on a '64 Fairlane, we've been able to measure have a very small volume intake tract, at about 890 cc. This can be increased slightly, but not significantly. A tri carb set up will help some.
Also, you said you have flat-top pistons. Are they part of a rebuild? A stock '66 200 would have a dished piston. A flat-top piston with a small chamber '64 head would have a too high compression problem. What is your CR goal? What are the chamber sizes?
Cam lift is best determined with input from a flow bench. Most log heads with improved intake and exhaust will peak out at around .400" lift. Again, a tri carb setup may help this, but the intake ports remain a serious limitation. Any more than your head can use is wasted as extra motion, stress and wear and tear on the springs, bearings, valves and seats.
Given the limitations of this head you might want to consider one of the dual pattern cams from Mike at FSPP. The 264D would be my best guess with an auto trans. The longer exhaust duration might help overcome the inefficiencies of the head. Even at that John (Inliner) is right on. This much cam will require major head work to get to it's potential.
You would be doing yourself a favor to start with a later (D7 or later) log head. Along with more intake tract volume you'd get larger valves, hardened seats and a larger, less shrouded chamber.
Your choice.
Adios, David
william
