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A VALVE SPRINGS

A

Anonymous-0

Well-known Member
ANYONE HAVE ADVICE ON WHAT VALVE SPRING TO USE? I HAVE JD A WITH HEISLER HEAD THAT HAS JD 70 (GAS) VALVES IN IT THE INSTALLED HEIGHT IS 2 1/2 INCHES WITH SEATED SPRING PRESSURE OF 55 LBS. AND THE TOTAL VALVE LIFT IS 7/8 OF AN INCH (HAS REGROUND CAM AND 2.15 RATO ROCKER ARMS) AT MAX VALVE LIFT THE SPRING PRESSURE IS 90 LBS.
 
(quoted from post at 13:45:43 08/18/14) ANYONE HAVE ADVICE ON WHAT VALVE SPRING TO USE? I HAVE JD A WITH HEISLER HEAD THAT HAS JD 70 (GAS) VALVES IN IT THE INSTALLED HEIGHT IS 2 1/2 INCHES WITH SEATED SPRING PRESSURE OF 55 LBS. AND THE TOTAL VALVE LIFT IS 7/8 OF AN INCH (HAS REGROUND CAM AND 2.15 RATO ROCKER ARMS) AT MAX VALVE LIFT THE SPRING PRESSURE IS 90 LBS.
Click to expand...

First shut off the d@mmed rude all capitals that mean you are shouting. Do you see anybody else typing in all capitals?
There are heavier JD valve springs for the 80/820/830/840 diesel that are supposed to fit.
 
You said 2.15 rocker ratio? I'm curious where you find those I'm interested in a set? Murphysmotorservice.com should have what you are looking for
 
the 2.15 ration is the old murphys motor service ratio for unstyled a before the new design rockers that he now makes. the old ones had a block on top and the new ones relocate the rocker shaft.
 
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