Help your distributor match spark timing to engine load with the Standard Ignition distributor vacuum advance, part number VC-225. This vacuum advance control is a direct-fit replacement for the listed applications, including the 1957-1967 Ford Fairlane, 1964-1967 Ford Mustang, 1959-1964 Ford F-100, 1958-1960 Edsel Ranger, 1960-1965 Lincoln Continental, 1978-1979 Chevrolet Malibu and 1978-1980 Pontiac Grand Prix. See the "Vehicles it fits" section for the full list of applications and engine details.
- Precision calibration: Calibrated for correct ignition advance.
- Leak tested: Units are tested at 30HG maximum vacuum to check that they do not leak.
- Quality control: Standard Ignition is a global manufacturer of original equipment ignition products. It maintains complete quality control throughout manufacturing, from componentry to the finished product.
- Heritage: Standard Ignition has served the automotive aftermarket since 1919 with broad ignition coverage.
A distributor vacuum advance uses engine vacuum to advance ignition timing during light-load, part-throttle driving. As load increases and vacuum drops, the added timing falls away. Signs this part may need replacing include hesitation or sluggish response at light throttle, reduced fuel economy, or a vacuum leak at the unit. These signs can have other causes, so diagnose the ignition system first. If a failed vacuum advance is the cause, the VC-225 replaces it.
Interchange: V439 · DV1855 · VC1855 · 1973608 · 1973610 · 1973615 · 1973662
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
V439, DV1855, VC1855, 1973608, 1973610, 1973615, 1973662
Frequently Asked Questions
What does a distributor vacuum advance do?
It uses engine vacuum to advance ignition timing during light-load, part-throttle driving. As load increases and vacuum drops, the added advance falls away.
How is the Standard Ignition VC-225 tested?
Standard Ignition tests these units at 30HG maximum vacuum to check that they do not leak. Each unit is also precision calibrated for correct ignition advance.
Which vehicles does the VC-225 fit?
Listed applications include the 1964-1967 Ford Mustang, 1959-1964 Ford F-250 and 1978-1980 Buick Century. See the "Vehicles it fits" section for the full list and engine details.
What part numbers does the VC-225 interchange with?
It cross-references V439, DV1855, VC1855, 1973608, 1973610, 1973615 and 1973662.
What are signs a vacuum advance may need replacing?
Signs include hesitation or sluggish light-throttle response, reduced fuel economy, or a vacuum leak at the unit. Other parts can cause these too, so diagnose the ignition system first.
