Kachina dad said:
We recently got hold of some heads for the 460. We are pretty sure they are early cobra jet heads. Screw in studs, no common rail. My question is, the only casting number on these heads is 20E-A. guess its a date stamp, but not sure. If anyone knows anything about these, please let me know. Thanks
There should be a letter in front of the 2, prolly a D.
D2OE-A are '72 to '74 Police Interceptor cylinder heads. These heads are very similar to the Cobra Jet castings with adjustable valvetrain. The port sizes are middle of the road between Thunder Jet and Cobra Jet. 2.20" x 1.93" intake and 2.06" x 1.31" on the exhaust ports. Valves are 2.19" intake and 1.72" exhaust. and the combustion chambers come in at 87 to 90 cc's. These castings are an excellent alternative to the CJ/SCJ castings and are more plentiful. In addition the reduced cross section of the intake port offers excellent low end torque and response.
Cobra Jet/Super Cobra Jet ports are 2.51" x 2.11" on the intake and 2.25 x 1.30 on the exhaust with valve sizes at 2.24" intake and 1.72" exhaust.
You most likely have a set of police inteceptor heads. Not Cobra Jets but better than D0VE's
D = 1970 era
2 = 1972 design
O = Torino (does NOT mean they didn't come on other vehicles, like police cars or boats.)
E = Engine component
-A = first edition of the heads.
I learned alot in my one summer as a Ford guy. Hope that helps.
