69MOPE Well-Known Member Joined Jul 12, 2011 Messages 1,731 Reaction score 119 Location Ridley Park, Pa. Mar 31, 2012 #1 What is the largest diameter push rod that can be used in a factory 426 Hemi head? Manton offers 3/8, 7/16 and 1/2 inch.
What is the largest diameter push rod that can be used in a factory 426 Hemi head? Manton offers 3/8, 7/16 and 1/2 inch.
HEMI-ITIS PRO TOW Joined Dec 2, 2008 Messages 657 Reaction score 106 Location Long Island Mar 31, 2012 #2 3/8 is stock,anything bigger will require some massaging:glasses7: