1. What is Valve Lift?

Valve lift refers to how far the valve opens from its seat during engine operation. For Corvette engines, the valve lift is typically 1.5 times the camshaft lobe lift due to the rocker arm ratio.

2. How Does the Calculator Work?

The calculator uses the simple formula:

Where:

• \( Cam\ Lift \) — The lift of the camshaft lobe in millimeters
• \( 1.5 \) — The rocker arm ratio for Corvette engines

Explanation: The rocker arm multiplies the camshaft's lobe lift to create greater valve movement.

3. Importance of Valve Lift Calculation

Details: Proper valve lift is crucial for engine performance, affecting airflow, power output, and engine efficiency. Knowing your valve lift helps in selecting proper valve springs and evaluating camshaft specifications.

4. Using the Calculator

Tips: Enter the camshaft lobe lift in millimeters. The value must be greater than 0. The calculator assumes the standard Corvette rocker arm ratio of 1.5:1.

5. Frequently Asked Questions (FAQ)

Q1: Is the rocker ratio always 1.5 for Corvettes?
A: Most stock Corvette engines use 1.5 ratio rocker arms, but aftermarket setups may vary.

Q2: How does valve lift affect performance?
A: Greater valve lift typically increases airflow and power potential, but requires proper spring selection and piston-to-valve clearance.

Q3: What's a typical cam lift for a Corvette?
A: Stock cams might have 0.450-0.500" (11.43-12.7mm) lift, while performance cams can exceed 0.600" (15.24mm).

Q4: Can I use this for non-Corvette engines?
A: Only if they share the same 1.5 rocker ratio. Other engines may have different ratios (commonly 1.6 or 1.7).

Q5: How accurate is this calculation?
A: It's mathematically precise for the given ratio, but actual measured lift may vary slightly due to valvetrain deflection.