Re: [Chrysler300] HP stampings on 413's

[lettercars@xxxxxxx]

Hi Dave and All:
Apparently most, if not all, 300F blocks do NOT have the HP.  I  have no idea 
why this is the case.  I personally have never seen one that I  knew to be 
original which had the HP.  Perhaps George Riehl has, as he  has seen more that 
I.  On the "up" side, the lack of an HP does make  it easier to come up with a 
"proper" block for a 300F if one is needed!
 
Dave, the date on your block, 3-2, would mean the engine was built on March  
2, 1960.  since your car was scheduled for January 12, and actually shipped  
on February 10, It does not seem that this engine/block could be your car's  
original.  It is odd, however, that the casting date is so much earlier  than 
the assembly date, and that the bearing shells seem to go along with the  
casting date.  Was this engine partially completed as a short block and  then 
sidetracked in the engine plant for a few months?  We will never know,  will we?  
 
The "starting" engine ID numbers of 8-4 means that 1960 P series engine  
production for all models started on August 4, 1959.
 
Hope this is of some help.  
 
300ly, Gil Cunningham
Tallahassee, FL
 
In a message dated 1/7/2006 5:04:28 PM Eastern Standard Time,  
Fnnutz@xxxxxxxxxx writes:

Confusion reigns folks.
Several opinions have been offered up re the  HP stampings on 413 blocks.
My 300F block is stamped 
P-41
and 3-2 on the  boss.
2120529-3
R L
11-30-9       cast in the block one side,

and 2120529-3
R L
and a clock pointing to the 3 on the other  side.

There is no sign of any HP stamping.

Does this mean that  my block may NOT be the original block?
The Torqueflite is correct numbers  for a 300 box, and the engine had the 
original steel shim gaskets dated  1959.

Can anyone shed some light?  Do 300 blocks ALL have HP  stamped on the 
boss......or not?

One more thing. On about Page 5 of my  1960 Service Manual( not numbered) is 
a heading License Data.
Lists  starting vehicle numbers for Detroit and LA built cars,and starting 
engine  numbers.Plus 2 pics of where to look.
It says: Starting engine numbers will  be as follows:
Windsor           PR-38   8-4
Saratoga          PR-38  8-4
New  Yorker       P-41   8-4
Chrysler  300F   P-41 8-4
Imperial             P-41 8-4

Starting engine numbers??   What the heck can that  mean?  Mine is stamped 
3-2 and I took that to mean Feb 3, as the build  date of my car was Feb 10.
Sometimes I find the Chrysler tech data somewhat  confusing.

Dave in New Zealand.




Thanks,     Dave in New Zealand.

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