<VV> Differences bwtween 1964 and late cylinders

[BobHelt at aol.com]

Bill, please see comments below,
Regards,
Bob Helt
 
In a message dated 7/1/2009 3:59:33 P.M. US Mountain Standard Time,  
tirediron at charter.net writes:

After  several frustrating tear downs and reassembly a friend who is 
building
a  140 engine utilizing a late case It has been discovered that rebuild  
parts
were ordered believing the engine case was a 1964 110  Powerglide.  Despite
careful repeated measuring and plastigauging at  each assembly a knock
difficult to isolate, but sounding like piston  developed soon after run in.
If has been since learned that the case was  from a 1967 PG 110 rather than 
a
1964.  
 
Shouldn't make any difference.

In  reviewing the Clark catalog it appears that 1964 pistons are
unique to that  year.  
 
Not true. 1964-69 stock pistons are all the same

Cranks,  cams, rods, pistons, bearings fit 1960-1969.
 
Not true. 1960-63 mostly are all the same. 1964-69 are mostly all the same. 
 Bearings are mostly the same for all years.


Can  anyone tell me what is unique about 1964 barrels 
 
The diameter of the 1964 cylimders is less than for 1965-69 due to the  
increase of head gasket surfaces in the LM cylinders.

and what  are the likely
consequences of their being assembled in a late case (with  140 heads)?
 
Not sure. possibly failure to seat the head gaskets allowing a compression  
leak.
 
Sorry to hear of your friend's problems.
Regards,
Bob Helt



Bill
Gardnerville, NV



**************Make your summer sizzle with fast and easy recipes for the 
grill. (http://food.aol.com/grilling?ncid=emlcntusfood00000005)