Swed Olds

Hi there
Is there anyone out there who can help me with cylinder heads of the 1964 394”?
On my car the ID on the cylinder heads starts with an “H”. One of them is cracked so I get another one, there the letter is “J” in the beginning. Is there a big different between them, can use the “J” marked on my engine, can I use the same valves as in the “H” head?

Thanks Per

J-(Chicago)

J and H heads are for a 455 olds motor.

Also the H head is VERY RARE and valuable. Are you sure it is an H head that you cracked?



I'll definitely take it if you don't want it anymore.
Is this car in Sweden?
an H head is probably worth twice the amount of the car that you have it in.

J-(Chicago)

and yes if it is a 455, the j heads will swap.

88 coupe

Norm

Swed Olds

It must be some kind of mistake, i´m talking about a 394" from 60-64 and my head has the ID: "H 069 822L and the other has: J 281 677.
And the reason is that i saw on tha Falcon sales E-store, it was different valves for Starfire and the other ones (i have an Dynamic 88 but what car the "J" head came from I don´t have any idea.
//Per

J-(Chicago)

I'll be damned.......

Could someone further explain this to me?
Different heads all together?

J-(Chicago)

I see. Thanks.
I have never even seen a 394 before.