RE: New Heads/Rebuild Engine?

[ledman_70@xxxxxxxxxxx]

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I had this same issue with the 413 in my 64 Polara a few months ago. 
70lbs of compression in one cylinder. When I took the heads off one 
valve was burnt off on the edge. I rebuilt a spare set of heads I had 
and put them back on the 120,000 mile motor. It brought the compression 
up on all cylinders to around 135 lbs. Worked good for me, but this was 
a TEMORARY motor for me as I'm building a 426 wedge for the car. One of 
the gurus on the list can tell you how to determine if the loss of 
compression is in the top or bottom end by squirting oil in the 
cylinders.
Jeff

John Mopar wrote:
> 
> Hello all,
> My '64 Polara has a 383 with factory four barrell engine with 120,000 
> miles on it. It is starting to run poorly. It is running roughly in gear 
> and has been using about 1 quart every 500 miles. There also appears to 
> be lots of blow-by coming out of the PCV valve and oil fill hole in the 
> valve covers.
>  
> I had the compression checked, and two of the cylinders have 60 pounds 
> of compression in them. 
> 
> At this point, I don't want to rebuild the entire engine as I don't have 
> the money or time to do it. What should I do to keep it running 
> (cheaply!):
>  
> -Have a machine shop get the heads redone?
> -Turn them into for an exchange?
> -Have the rings done at the same time, or let them be?
>  
> I have heard that slapping new heads on the engine is not a good idea 
> since I will simply blow out the bottom end of the engine with the new 
> compression. Since I am using oil, can I easily have the rings done at 
> the same time?
>  
> If swapping the heads is the way to go, should I hold onto mine, or not 
> bother? The block is numbers matching and I believe these are high 
> compression heads since the car has dual points.
> 
> -How much would the parts/work cost?
> -Any ideas for shops/retailers in the San Jose CA area?
> 
> Sorry for the long email, but I really want to keep the car going for 
> little $ until I can have the whole engine redone?
>  
> Thanks
>  
> John
> 
> 
> 
> 1964 Dodge Polara 500 Convertible 383
> 		
> ---------------------------------
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> [Non-text portions of this message have been removed]
> 



Jeff Adams
64 Polara

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