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Y Block - installing new push rods

Posted By markoxpollo 2 Years Ago
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markoxpollo
Question Posted 2 Years Ago
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Hitting on all eight cylinders

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Does the ball look like its setting deep enough in the push rod cup? Lash is set to .020 cold.http://forums.y-blocksforever.com/uploads/images/b9123dee-3217-43aa-8c2c-339f.jpg
Joe-JDC
Posted 2 Years Ago
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Looks like you need longer pushrods, and make sure the cup is for 3/8" ball, not 5/16".  Ideally, the adjuster should have one thread showing instead of all of them.  Joe-JDC

JDC
charliemccraney
Posted 2 Years Ago
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I think the ball looks ok.  You can check that by applying some grease or marker or layout die to the ball, rubbing the two together and observing the pattern.
The pushrods do look too short.


Lawrenceville, GA
markoxpollo
Posted 2 Years Ago
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Hitting on all eight cylinders

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whats strange is, that the car is a 56 and the length it calls for is 8.125". BUT a 55 calls for 8.25".... wondering if my 56 has a 55 engine?
charliemccraney
Posted 2 Years Ago
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You have the oil trays under the stands those were phased out at some point early on.  Not sure of the date.  Those add extra height, which would require longer pushrods, everything else equal.  Also, given that the car is now 62 years old,it can have any combination of parts now, including different heads, or an entirely different engine than it came with.


Lawrenceville, GA
Florida_Phil
Posted 2 Years Ago
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I ran into this problem when I swapped 1957 "G" heads onto my 1955 engine.  Remove the oil trays from under the rocker stands and you will be fine.  They are not needed.


http://forums.y-blocksforever.com/uploads/images/82ad85c1-6def-4eb4-a085-3dd2.jpg

markoxpollo
Posted 2 Years Ago
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Hitting on all eight cylinders

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thx, I also just noticed the rocker arms one one side have the number 6564-A2 and on the other side they are numbered 6564-B. Slight difference in size but they seem to work. Is that a problem you think?
Tedster
Posted 2 Years Ago
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I thought 6564 rockers were all 1.56 ratio regardless, maybe not? Are they different lengths?

edit: corrected. Need more coffee. 5751066 are standard ratio markings.
2721955meteor
Posted 2 Years Ago
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my inf is ecg 6564 is1.93 56has jam nut 57 and up self locking,different thread  for self locking.55and some 56 1.78 ean) have some on rocker shafts and it is obvious the lift of the6564s is better. threads closer to the shaft versus  ther are several #S on the other rockers,but   all 6564s  have threads close to rocker shaft. ted had some listings showing ecg6564 as  the higher lift,and comparing them on a rocker shaft confirms he is correct
Florida_Phil
Posted 2 Years Ago
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You need to have the same ratio rockers on both sides of your engine.  These are old engines and many have been thrown together from more than one engine.  When I took my 292 apart, I found a mishmash of parts.  Very common. 


http://forums.y-blocksforever.com/uploads/images/82ad85c1-6def-4eb4-a085-3dd2.jpg



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