What Are the Chevy 350 Head Bolt Torque Requirements?

If securing the stock cast iron head, the torque requirements for Chevrolet 350 cubic inch V8 head bolts are 65 foot-pounds per bolt. Manufacturers’ guidelines should be checked because aftermarket aluminium heads require specific torque settings.

It is required to constantly tighten Chevy 350 cylinder head bolts in a helical pattern, beginning with the centre bolt and moving outward in a clockwise spiral. To maintain consistent pressure across the head, it is advisable to initially tighten all the bolts to 25 foot-pounds, then 45 foot-pounds, and lastly 65 foot-pounds.

Additionally, any bolts that enter the water jacket should have sealant applied to them as well as engine oil or another lubricant to the bolts in blind holes.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.


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