1965 Barracuda 273 rebuild...intake code?

My head casting numbers are 2465315-2 and I do have a set of solid lifter rockers/arms/lifters for it that I bought earlier for just in case purposes. I believe the heads are stock for 64-65? correct? Also the badging on the car says Commando V8 and the intake air cleaner is an original chrome Commando 273 air cleaner, so I'm guessing that the engine block (2806030-273-7) is not the original and may be entirely different? I did some checking on the VIN and it all matched up as a 273 Commando with Hi-Po engine and 4 speed tranny made in California. I guess I'm going to have to pull the heads off to determine the bore and crank dimensions. Thank you guys for all the feedback and info...it really helps!!