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JWL · 08-28-2013, 05:52 AM

Ron is absolutely correct.

The torque sequence is not as important as being certain to tighten in relatively small, equal, increments up to the final level. Keep everything as flat as possible during the process. At least 3 cycles around all the fasteners to get up to the final.

The strength of the fastener or fastener manufacturers torque recommendations are completely worthless statistics for Flathead cylinder head clamping torque.

The heads should be checked for flatness with the appropriate, precision, straight edge and placed on the granite inspection table to determine whether or not they are flat.

08-28-2013, 05:52 AM	#7
JWL Member Emeritus Join Date: May 2010 Location: Fitzgerald, Georgia Posts: 2,204	Re: torquing Offenhauser heads Ron is absolutely correct. The torque sequence is not as important as being certain to tighten in relatively small, equal, increments up to the final level. Keep everything as flat as possible during the process. At least 3 cycles around all the fasteners to get up to the final. The strength of the fastener or fastener manufacturers torque recommendations are completely worthless statistics for Flathead cylinder head clamping torque. The heads should be checked for flatness with the appropriate, precision, straight edge and placed on the granite inspection table to determine whether or not they are flat.