HomeStandard Ignition VC-256 Distributor Vacuum Advance
Part #: VC-256

Standard Ignition VC-256 Distributor Vacuum Advance

51 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, C10, C10 Suburban, C20, C30, G10, G20, K10, K10 Suburban, K20, K5 Blazer, C1500, C1500 Suburban, C2500, C3500, G1500, G2500, Jimmy, K1500, K2500, P30, G3500, Camaro, Caprice, G30, Impala, Nova, C15, C15 Suburban, C25, C35, G15, G35, K15, K15 Suburban, and K25
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Overview of Standard Ignition Distributor Vacuum Advance VC-256

The Standard Ignition VC-256 Distributor Vacuum Advance is designed to provide precise ignition timing control for a range of Chevrolet and GMC vehicles. This vacuum advance unit features a single hose connector, ensuring compatibility with original equipment vacuum lines for reliable performance.

  • Single hose connector for easy installation
  • Compatible with multiple Chevrolet and GMC models including C10, Camaro, and K5 Blazer
  • Part number VC-256 for accurate identification
  • Designed to maintain proper ignition timing under varying engine loads
  • Durable construction for consistent operation

Product Details and Compatibility

The VC-256 distributor vacuum advance from Standard Ignition is engineered to fit a wide range of Chevrolet and GMC trucks and cars, such as the Chevrolet C10, C1500 Suburban, Camaro, and GMC K5 Blazer. This part is essential for vehicles that require vacuum advance functionality to optimize ignition timing based on engine vacuum. Featuring one hose connector, it integrates seamlessly with the vehicle’s vacuum system to adjust timing dynamically, improving engine efficiency and drivability.

Applications and Problem Solving

This distributor vacuum advance is used to regulate ignition timing in response to engine load changes, which helps improve fuel economy and engine performance. It addresses several common issues including:

  • Erratic or delayed ignition timing under load
  • Reduced fuel efficiency due to improper vacuum advance
  • Engine hesitation or stumbling during acceleration
  • Difficulty maintaining smooth idle speeds
  • Premature ignition timing wear or failure in older vacuum advance units

Installation Notes and Tips

Installation of the Standard Ignition VC-256 distributor vacuum advance requires disconnecting the old vacuum advance unit and attaching the new unit’s single hose connector to the existing vacuum line. Ensure the vacuum hose is free of cracks or leaks before installation. Proper alignment and secure mounting to the distributor are critical for accurate timing response. It is recommended to verify ignition timing after installation to confirm correct operation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable fit and function. The VC-256 distributor vacuum advance undergoes rigorous quality control to maintain consistent performance. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product durability.

This part fits 51 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1980ChevroletC104.1LL6N/AOE No. 1110715
1980ChevroletC10 Suburban4.1LL6N/AOE No. 1110715
1980ChevroletC204.1LL6N/AOE No. 1110715
1980ChevroletC304.1LL6N/AOE No. 1110715
1980ChevroletG104.1LL6N/AOE No. 1110715
1980ChevroletG204.1LL6N/AOE No. 1110715
1980ChevroletK104.1LL6N/AOE No. 1110715
1980ChevroletK10 Suburban4.1LL6N/AOE No. 1110715
1980ChevroletK204.1LL6N/AOE No. 1110715
1980ChevroletK5 Blazer4.1LL6N/AOE No. 1110715
1980GMCC15004.1LL6N/ADist. No. 1110715
1980GMCC1500 Suburban4.1LL6N/ADist. No. 1110715
1980GMCC25004.1LL6N/ADist. No. 1110715
1980GMCC35004.1LL6N/ADist. No. 1110715
1980GMCG15004.1LL6N/ADist. No. 1110715
1980GMCG25004.1LL6N/ADist. No. 1110715
1980GMCJimmy4.1LL6N/ADist. No. 1110715
1980GMCK15004.1LL6N/ADist. No. 1110715
1980GMCK25004.1LL6N/ADist. No. 1110715
1979ChevroletC104.1LL6N/AOE No. 1110715
1979ChevroletC204.1LL6N/AOE No. 1110715
1979ChevroletC304.1LL6N/AOE No. 1110715
1979ChevroletK104.1LL6N/AOE No. 1110715
1979ChevroletK204.1LL6N/AOE No. 1110715
1979ChevroletK5 Blazer4.1LL6N/AOE No. 1110715
1979ChevroletP304.1LL6N/AOE No. 1110715
1979GMCC15004.1LL6N/ADist. No. 1110715
1979GMCC25004.1LL6N/ADist. No. 1110715
1979GMCC35004.1LL6N/ADist. No. 1110715
1979GMCG15004.1LL6N/ADist. No. 1110715
1979GMCG25004.1LL6N/ADist. No. 1110715
1979GMCG35004.1LL6N/ADist. No. 1110715
1979GMCJimmy4.1LL6N/ADist. No. 1110715
1979GMCK15004.1LL6N/ADist. No. 1110715
1978ChevroletC104.1LL6N/AOE No. 1110715
1978ChevroletC10 Suburban4.1LL6N/AOE No. 1110715
1978ChevroletC204.1LL6N/AOE No. 1110715
1978ChevroletC304.1LL6N/AOE No. 1110715
1978ChevroletCamaro4.1LL6N/ADist. No. 1110715
1978ChevroletCaprice4.1LL6N/ADist. No. 1110715
1978ChevroletG104.1LL6N/AOE No. 1110715
1978ChevroletG304.1LL6N/AOE No. 1110715
1978ChevroletImpala4.1LL6N/ADist. No. 1110715
1978ChevroletK104.1LL6N/AOE No. 1110715
1978ChevroletK10 Suburban4.1LL6N/AOE No. 1110715
1978ChevroletK204.1LL6N/AOE No. 1110715
1978ChevroletK5 Blazer4.1LL6N/AOE No. 1110715
1978ChevroletNova4.1LL6N/ADist. No. 1110715
1978GMCG154.1LL6N/AOE No. 1110715
1978GMCG354.1LL6N/AOE No. 1110715
1978GMCJimmy4.1LL6N/AOE No. 1110715

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1911066319736194V105857-7566DV1857V413VC1857VC431

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.