I want to knowhat type of heads I have and...

The casting date is the number that reads 0L24:

0 = 1970
L = November
24 = 24th of November.

November 24, 1970

Since the 1971 production year began in July 1970, these are 1971 closed chamber heads.

If you were to remove the head and look on the bottom side of the intake ports, you would find D1AE cast into one of them.

cowboy from hell

And on the bottom of the next runner you should find GA for a complete p/n of D1AE-GA.
I held a piece of paper against the bottom of the runner and rubbed it with my finger to confirm what I could not see while the heads were still bolted to the block.

BITCHEN so are these heads beter or worse for power than the 70 DOAE set I have on my garage floor? with the stainless valve set I have for it? I wonder if I have a 4 bolt main..hmmm.
SWeet sounds like I have a nice motor in my car...now if one had a choice...and I do have one of each would you put a SPEED DEMON 750 w mech secondaries or a 4150hp 650fm series with 4 corner idle mech secondaries (which SHOUld e on a STICK-shift CAR IMHO) and a a set of stock jets and a setof four sizes up from stock. The carter AFB HAS to go though it was nice when t secondaries finally decided to open. Any clue what the metal thingy with the tangs that went r each valve/rocker has and sould get another? 1.72 roller rockers seem a bit tall from my valve covers and they may have caused the damage. my new wireless kyboard f'ing blows

The D0AE heads have combustion chambers that are 3cc smaller. With flat top pistons you will have 9.7:1 compression with the D1AE heads, 10.0:1 with the D0AE heads.

A 750 Demon is equivalent to a 850 Holley. The 650 Holley is too small for a Cleveland, so the 750 Demon gets the nod.

cowboy from hell

It sounds like you have the Ford aluminum valve covers from the Boss and have the oil drip tangs.

They are meant to work with the stock rocker arms and from what I have seen are too long for aftermarket aluminum roller rocker arms.

They will most likely interfere with the rocker arms.

You can remove them by removing the small pan head #1 Phillips retaining screws.

They probably add longevity to the factory rocker fulcrums but with the roller rockers are just echachka's.

Yeah I was shittin brix when I heard the noise coming from the left bank. Glad I dont need em.
Wow so I have a nice cam roller rockers closed chambers good compression. I was always under the impression that a speed demon was going to be too fat and that the 4150 hp upjetted was the ticket. Well I guess the camaro will love it instead and the demon is sitting on the car with the camaro waiting for me to fire the new 350. I have ford pushrod retainers witht he CZ code prefix. Would I have space for stud girdles in my current setup? I have a nos set of pretty gold moroso ones. arent solid roller lifters supposed to have a connector bar on them? The comp coms ones on my motor dont look like the new set of Sid Herbert3 ones I have.

When I removed my rocker covers i found that my roller rockers were hitting the baffles at the oil fill/ PCV valve too. Left shiny spots on the bafles. I removed them and dimpled them with a ball peen hammer into a 1-1/4" socket. Worked well, looks like they were meant to be that way.
I think you need to leave the baffles in if you've got a PCV valve or else it'll suck up a bunch of oil