360 head ?

First look for a 7 digit casting number on the intake runner and check and measure the valve size if you can.If you have a small hole just below the exhaust port you have the 360 air pump heads.Now are these heads magnum heads or the old school heads? Some of the casing numbers for the 360 are these:
LA Engine Cylinder Heads Casting Numbers

Casting Number Engine CID Year Intake Exhaust
2465315 273 1964-65 1.78 1.50
2536178 273 1966 1.78 1.50
2658920 273 1967 1.78 1.50
2843675 273 1968-69 1.78 1.50
2658920 318 1967 1.78 1.50
2658234 318 1967 1.78 1.50
2843675 318 1968-74 1.78 1.50
3769973 318 1975-83 1.78 1.50
4027163 318 1977-86 1.78 1.50
4027593 318 1977-84 1.78 1.50
4323302 318 Fast Burn 1985-86 1.78 1.50
4323345 318 Police 1983-86 1.78 1.50
2531894 340 1968-70 2.02 1.60
3418915 340TA 1970 2.02 1.60
3418915 340 1971-72 1.88 1.60
3671587 340 1973 1.88 1.60
3418915 360 1970-72 1.88 1.60
3671587 360 1973-74 1.88 1.60
3769974 360 1975-76 1.88 1.60
3671587 360 1976 1.88 1.60
4027569 360 1977-86 1.88 1.60