Re: IML:1960's 413 Cylinder Heads/ Newer Style vs Older Style

[charles major <charlesdmajor@xxxxxxxxx>]

I have been down that road, you have to get the new
matching rocker arm assemblies.


--- randalpark@xxxxxxx wrote:

> 
> I have discovered a problem in replacing ONE of the
> heads on my 1960 
> Imperial. The replacement head seems to be for a
> later engine, and has 
> towers for the rocker shaft cast into the head. The
> earlier design is 
> made differently in this respect. We see no other
> differences in 
> specifications for push rod length, valves, valve
> springs, etc.
> 
> I think that the replacement may also have more
> valve cover mounting 
> holes, but the old valve cover with fewer holes
> seems to line up with 
> what is needed to fasten down the valve cover. I was
> aware of this 
> difference between old and new style big block
> heads, but the rocker 
> shaft mounting towers was something I had not heard
> before.
> 
> Reviewing my various FSM's and pictures in the
> Engine Section, it 
> appears that this change occurred in 1964. Has
> anyone here encountered 
> this? Other than the actual rocker shaft, will the
> head fit and 
> function the same as the old style on my engine?
> 
> Thanks in advance for anyone's help/advice!
> 
> Paul W.
>
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Charles Major
270.791.4139 Moble
208.728.4443 FAX


 
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