MSD
MSD 6 HVC, Professional Race with Fast Rev Limiter
Part # 6631
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For use in Circle Track and Professional Racing, with Fast Rev Limiter
MSD 6 HVC, Professional Race with Fast Rev Limiter
Estimated Ship Date: 06/30/2026
Free Shipping - Lower 48 US States
MSRP $1,037.95
$828.95
Save $209.00
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The Fast Rev limiter is very quick and accurate compared to our Soft Touch Rev limiter.
Professional race teams have been relying on the power and endurance of our 6 HVC Ignition Control. The advanced component design and circuitry of the 6 HVC Ignitions produce incredible voltage with high current output. Internally there is an efficient heat sync, solid component mounting and it's all encased in a clear epoxy. The rpm limit is adjustable with plug-in modules and the wiring is routed into NASCAR approved Deutsch style MSD connectors.
Features:
- 150 millijoules per spark up to 15,000 RPM
- Built-in reverse polarity protection circuit
- Must be used with HVC Coil PN 8250
- Accepts breaker points, amplifier and magnetic pickup trigger inputs
- 6-pin Weathertight connector, mandatory for NASCAR use
- No CARB Exemption Order Number
- 15,000 RPM with 14.4 Volts
- Multiple sparks for 20 degrees of crankshaft rotation
- Includes built-in Fast rev limiter
- 12-18 Volts, Negative Ground
- Clear epoxy potting compound for vibration protection and clear base plate for easy tech inspection
- 550 primary voltage output to coil
| Brand | MSD |
|---|---|
| Category | Ignition |
| Color | Black |
| Connector Gender | Male Female |
| Connector Quantity | 3 |
| Emission Code | 4 |
| Grade Type | Performance |
| Height | 2.25 IN |
| Ignition Type | Performance |
| Length | 8 IN |
| Maximum RPM | 15,000 RPM |
| Mount Type | Surface Mount |
| Mounting Hardware Included | Yes |
| Primary Voltage | 550 |
| Product Type | Ignition Box |
| Secondary Voltage | 40,000 |
| Spark Energy (mJ per spark) | 150 |
| Spark Series Duration | 20 Degree Crankshaft Rotation |
| Sub Category | Control Modules |
| Terminal Gender | Male Female |
| Terminal Quantity | 11 |
| Voltage Required | 12-18 |
| Warranty | Manufacturer's Limited 1 Year Warranty |
| Weight and Size | 5.1 lbs.,8L x 4W x 2.25H |
| Width | 4 IN |
| UPC | 085132066315 |
| Warning | California Proposition 65 |
| Part Number | 6631 |
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4
This part is legal for sale or use on Racing Use Only Vehicles
The following vehicles are considered Racing Use Only Vehicles:
- Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street.
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
Manufacturer's Limited 1 Year Warranty: See Details
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Some parts are not legal for use in California or other states with similar regulations.