Guides
- C5 Harmonic Balancer Replacement: An Overview
Why C5 balancers are replaced, how to spot a failing one, and what the job involves. This is an overview, not a step-by-step procedure.
- C4 Opti-Spark: What It Is and Why It Fails
An overview of the front-mounted Opti-Spark distributor on 1992–1996 LT1 and LT4 Corvettes, common failure symptoms and how owners prevent trouble.