However, the critical element is even tightening. Don't just tighten bolts in a circle. A star pattern ensures even clamping pressure across the valve cover gasket to prevent leaks.
To perform a star pattern:
1. Start with a bolt in the center or near the center.
2. Tighten the bolt diagonally opposite.
3. Then tighten the bolt diagonally opposite to one of those, and so on, working your way outwards until all bolts are tightened.
Important Considerations:
* Torque Specification: Always consult your engine's repair manual or a reliable source like a Chilton's or Haynes manual for the correct torque specification for your specific valve cover bolts. Over-tightening can damage the valve cover or the cylinder head. Under-tightening can cause leaks.
* Gasket Condition: Ensure you are using a new gasket and that it is properly seated before tightening.
* Bolt Condition: Check the bolts for damage before reuse. If they are bent or stripped, replace them.
Without knowing the exact year and engine details of your Chevrolet 350, providing a specific numerical sequence is impossible and could be misleading. Prioritize the star pattern and accurate torque. A repair manual is your best source for precise details.
