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Old 02-19-2021, 09:23 AM   #2
Jack Shaft
Join Date: Dec 2019
Posts: 1,196
Default Re: Stud boss height for stock heads

A stud or bolt is only as strong as its width, burying threads beyond its width does not add to its grip strength.

The same reason you don't use cap screws for head bolts is used to explain installing studs finger tight, Ford grey iron casting does not support undue thread stress, so no undue load on the block threads prior to torqueing assembly.

Ford manufacturing precision and interchangeability of parts is often taken for granted, it truly is a marvel when you consider it..5 million units produced almost complete interchangeability,, thank CE Johannson for this. High compression heads are not held to Ford's rigid standards, and some like the Brierley head introduce a taller design to improve cooling and performance, requiring longer studs. Performance modifying requires flexibility..
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