* Year of the engine: Torque specs changed slightly over the years of the 350's production.
* Type of rocker arm: Different rocker arms (stock, aftermarket, stamped steel, roller etc.) will have different torque specifications.
* Bolt size and material: The size and material of the rocker arm bolts themselves affect the appropriate torque.
To find the correct torque specification:
1. Consult your engine's repair manual: This is the most reliable source. The manual will specify the torque based on your specific engine's year and components.
2. Check the rocker arm or bolt packaging: If you've recently replaced the rocker arms or bolts, the packaging might have the torque specification printed on it.
3. Look up the specification online: Search for "[Your Year] Chevy 350 rocker arm torque spec" along with any specific details about your rocker arms (e.g., brand, type). Be cautious of the information you find online; always prioritize a reputable source.
Important Note: Using an incorrect torque can lead to rocker arm failure, valve train issues, and even engine damage. Always use a torque wrench to ensure accurate tightening. Never just "tighten them down".