Posted by RDavis on Friday, September 13, 2002 at 9:59AM :
In Reply to: compression of 251 ci flathead posted by Doug Boeve on Thursday, September 12, 2002 at 9:41AM :
Referring to a "S" series,Dodge Truck,
technical service manuual for models 100-600,
(early 60's)
It states: w/std.trans.
min. cranking speed - 150 rpm
compression pressure - 115-145 psi
max. variation between cyls. - 15 psi
This is for the 251-3 eng.